most manufacturers state it on their glasses, also this fiasco https://www.amazon.com/Premium-Certified-Lunt-Solar-Eclipse/product-reviews/B06XTL5M5T/ref=cm_cr_dp_d_hist_1?ie=UTF8&filterByStar=one_star&reviewerType=avp_only_reviews#reviews-filter-bar
If I had to guess the structure of the plastic is specifically designed and any cracks or creases ruins it.

Get yourself a pH reader - this is the one I use. Otherwise, you need to stick to approved recipes.

well i just got out in the kitchen and experimented. I took ingredients that i thought sounded good together but i took into consideration the pH of things. Thats where vinegar comes in. in order to be shelf stable it has to have a pH of 3.9 or below (as per FDA regulations).

A very simple hot sauce would be Peaches, yellow ghosts, fataliis, and pineapple with some cider vinegar and agave nectar. or you can go the savory route with fresh smoked ghost peppers, pears, white vinegar, garlic, and a touch of salt.

to find the pH you can either use litmus paper or a good pH pen like this

and check this out: http://thehotpepper.com/topic/29501-making-hot-sauce-101/

any (well reviewed) pen style PH meter from amazon will do. I use this one: http://www.amazon.com/Milwaukee-Instruments-pH600AQ-Tester-Calibration/dp/B005H78ZI0/ref=pd_sbs_indust_6

Good PSA

Here are some Links

Oakton PH2

Calibration Solution

Storage Solution

Get a good quality tester and keep it cleaned/calibrated and you will have it for a VERY long time :D

PS. I started out with a $20 PH pen and found out after some PH issues started up that it needed to be calibrated pretty much between each use. If I left it alone for a week it would be off by .3-.5 every time...

I have the thermoworks 8689. It seemed to never lock on to a pH, any temperature fluctuation would change the readout even though it has ATC. It also rarely showed that I hit my expected mash pH. I switched to this: Apera Instruments AI311 PH60 Premium Waterproof pH Pocket Tester, Replaceable Probe, ±0.01 pH Accuracy, -2.00-16.00 pH Range https://www.amazon.com/dp/B01ENFOIQE/ref=cm_sw_r_cp_apa_i_u1i2DbFX4E7XX. Have only used it twice but both times it showed I hit my expected mash ph, it stayed steady, and this all without calibration. Last brew day, I used both, the apera matched my target, so I calibrated the thermoworks and it still did not match. Happy with the apera, but with two different pH readings I have no idea which is correct. Apera is matching my target so I'm inclined to believe it. The apera also comes in a nice case and is easier to keep stored in solution.

Pancellent water quality test meter kit. Buy these and some distilled water to use for calibration of the pH meter and that's all you need. I also looked up my city's water quality reports for more detail. TDS is total dissolved solids so it tells you how much "stuff" is in your water but you need the city reports to get an idea of what that "stuff" actually is. My TDS is higher but mostly made of calcium carbonate from the limestone aquafers where my city gets its water. Calcium carbonate is not great in high amounts but at the right pH you can flush it out. Salts in the water can be toxic which is why softened water is generally really bad for plants. It's good to know what stuff is in your water as well as how much of it there is.

The Setup

• Secret Jardin DR60 Grow Tent w/custom SCROG setup
  
• Blackstar 240 Watt LED Lighting System
  
• MINI FloraLux 150 Watt HPS Lighting System
  
• Hanna Instruments HI 98129 Digital PH/EC tester
  
• Powerstrip Timer
  
• Holmes HEPA Air Purifier
  
• Massey 6" Clip Fan
  
• GH Flora Series Expert Recirculating Nutrient Schedule
  
• Started 12/12 Flower cycle 4-1-13

Might work. Problem you will run into is that your single exhaust is going to pull from each tent evenly. So you'll have too much airflow in the veg tent, and too little in the flower. You can fight that using passive intake for the 2x4'. Or possibly just controlling how open the intakes are.

Make sure you are buying an inline filter. Which is more expensive than the usual ones. I run this Phresh model.

I do something similar, but with three 4x4' tents. Each has it's own 4" inline, and they all exhaust to a single 6" inline filter with a 6" inline fan hooked to it. It works well, but I do have to keep all the 4" fans running minimally, to keep air moving the right direction--this seemed easier than installing duct dampers.

Really, since you haven't purchased yet, I would run a 6" duct fan in the 3 x 20" tent, and a 4" inline fan hooked to a 4" carbon filter in the 2x4'. Skip the combined filter and fan. You don't really need a carbon filter for veg. That'll still let you exhaust to a single opening. Also, run the duct splitter as close to the outside opening as possible, to avoid one fan blowing back into the other tent.

As someone who has struggled with dog shit PH pens from Amazon get yourself something decent. All my problems have stemmed from PH problems and nothing else.

https://www.amazon.ca/gp/aw/d/B00ST3VTQ4?psc=1&ref=ppx_pop_mob_b_asin_title


This one has been way better

Apera Instruments AI311 PH60 Premium Waterproof pH Pocket Tester, Replaceable Probe, ±0.01 pH Accuracy, -2.00-16.00 pH Range https://www.amazon.com/dp/B01ENFOIQE/ref=cm_sw_r_cp_apa_i_17svCb4YECPMC

Sure, happy to

Ingredients:

• 2 cups distilled or filtered water
  
• 1.5 TBSP additive free salt
  
• 1 lb. red jalapenos (or other hot red peppers of choice), halved, seeds & stems removed
  
• 1 lb. Thai red chilies (or other hot red peppers of choice), stems removed (seeds optional)
  
• 16 oz. sweet cherries (4 oz. in the ferment; 12 oz. added at blending), frozen or fresh (note that if using fresh, 16 oz. is the net weight AFTER the seeds are removed, so you’ll likely need more like 2 or more lbs.)
  
• 2 tsp garlic powder (post-ferment) OR 6-8 cloves fresh garlic in ferment
  
• 1 TBSP sugar (post-ferment)
  
• Optional: splash of white vinegar (post-ferment)
  
  Directions:
  
  1.) Rinse and prepare the peppers as described above.
  
  2.) Add the cherries and Thai chilies to the jar, and garlic if using fresh, followed by the larger jalapeno pieces.
  
  

3. Prepare the salt brine either by combining the salt in warm water and allowing it to cool, or shake them together vigorously in a tightly sealed jar. Then slowly add the brine to the ferment vessel.
   
   4.) About an inch before the jar is filled to the shoulder, add the weight, and continue pouring brine until all produce is submerged. It is important to have some distance from the top, as the water level will continue to rise as the produce releases moisture.
   
   5.) Apply the airlock lid and ferment for desired length. Suggested: Minimum one month. The pictures shown feature a nearly 3-month ferment.
   
   After the ferment:
   
   1.) Strain the brine from the peppers.
   
   2.) Transfer the peppers to the blender, add 1/2 cup of the reserved brine, 12oz. thawed frozen cherries, sugar, and garlic powder (unless fresh cloves were used in ferment). Blend on high for a few minutes. If you prefer a thinner sauce, add additional brine, blend, continuing to add brine and blend until desired consistency is achieved.
   
   3.) You may now store the sauce raw in the refrigerator, or go on to cook and/or pasteurize it.
   
   Raw sauce: This method preserves the probiotic bacteria in your ferment. If you can test the pH and confirm it is 3.2 or below, there will be no issues. If the pH is above this level, it is possible the added sugar and cherries can restart the ferment, which can create excessive pressure in the storage container. It is not suitable for mailing or room temperature storage. If you are close to 3.2, you may add vinegar until the correct pH is achieved. If not, refrigerator storage is an acceptable method, but the container should be monitored and the cap periodically loosened to release potential pressure build-up.
   
   Cooked sauce: Transfer the sauce to a medium saucepan, bring to a boil, then reduce heat to low, simmering covered for around 20 minutes. You may then opt to blend the sauce further in the blender for several minutes while hot, which will create a very smooth, easily flowing sauce. You can add a splash of vinegar for flavor and to further reduce pH as well. To transfer to 5 oz. woozy bottles, use a bottling funnel.

Honestly, you can do much better for your money... There are kits in the Starter Shopping Lists to the right on the sidebar.

I was wondering the other day what exactly I would need for a turn-key grow setup, and put the following together. Mind you, this is not TOP of the line shit, but it will absolutely get you into the hobby!

600W Tube / Timer / MH & HPS Bulbs / Hangars / Ballast - $157.50

6 Inch Carbon Filter / 440CFM Fan - $149.75

25 Ft. 6 Inch Ducting - $19.10

48 x 48 x 78 Tent - $139.99

FFOF - $18.99

General Hydroponics Go Box Starter Kit - $35.95

CALIBER IV DIGITAL HYGROMETER - $19.23

Smart Pot Container - Pack of Five - $20.65

Micro-Tip Pruning Snip - $10.19

Light Duty Soft Wire Tie - $7.84

PH & Temperature Meter - $79.95

Water Quality TDS Tester - $15.59

LED Handheld Microscope - $16.81

Total just under 700$ and you are getting a LOT more for your money.

Don't blindly take that list, shop around, deal hunt, and do the research! There are many hidden costs associated with growing ><

I experienced a similar situation. I was using the drops-based pH testing system and didn't have to use a whole lot of pH up to get a good color out of the tester. When I switched to a digital pH meter I noticed that much more pH up was needed to attain the proper pH range.

Eventually that pH meter drifted so far down the scale that even calibration wouldn't bring it back. I ended up buying a different digital pH meter that has a digital calibration system and it's perfect. It reads much, much more accurately than the other two systems, especially if I calibrate with three pH points: 4.0, 7.0, and 10.0.

Carbon scrubber

measuring glass/syringe

If you're doing hydro there are other nutrients I might recommend getting.

I know a lot of pH pens have bad reviews, this is probably the best one I've seen for the money, no idea if yours is good:

https://www.amazon.com/gp/product/B004G8PWAU/ref=ox_sc_act_title_11?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

Also if you're not necessarily set on LEDs you can get an equivalent/better, MH/HPS light.

If you do go for a better light for the same/less price you could also go with a larger tent. This one isn't very much more but it can support a larger light, and it has some real decent reviews. https://www.amazon.com/dp/B00H9NGP8C/ref=ord_cart_shr?_encoding=UTF8&psc=1&smid=ATVPDKIKX0DER

I would go with a 4'x4' tent at the very least; the one you've linked is too small for a 1000W lamp. I'm doing 4x3x7 right now with 1000W and it's really not easy to keep it cool, I'll often hit 88-90F even with AC in the room. A little bit larger space and it would be much more comfortable.

What are your plans for a growing medium? This might be more important than anything else you're buying! There are also a million options between soil, coco, and the various hydro setups like DWC, ebb and flow, etc. I've had good results with coco coir. You might be best off starting with a decent soil like the Fox Farms lines - pH is much easier to manage in soil.

Speaking of, you also want a good pH meter, and pH up and down. Just get the General Hydroponics pH test kit - it's cheap and you'll have enough to fix pH for your entire grow. For a meter, I recommend this Oakton unit. You'll also want some pH calibration/storage fluid to maintain it properly.

Since you are in the UK I imagine, the selection is a good bit different and many of the budget recommendations are not available. However there are some great speakers still to be had.


Wharfedale 9.0 for £60

Boston Acoustics A25 for £90

Wharfedale Diamond 10.0 for £93

It looks like the Lepai is available, which would make for a suitable amp to get started with.

So is the SMSL SA-50 which would be a good step up in mini amps but is 2x the price.

If neither of those suited your needs, I would look for a basic 2.0 receiver. That you can find used or from you local electronic store.

I'd spend the $10 and buy a digital tester:
https://www.amazon.com/gp/product/B00N7432II/

Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Complete Kit https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_apa_B.ftzbRZX6JX1

Edit: Time to transplant, they look big enough and the solo cups have shallow soil to begin with.

Edit2: looks like you have more perlite than soil, I would do a light n feeding after transplant.

The "never buy another one" option is Blue Labs. https://www.amazon.com/dp/B005POOJHG/ref=asc_df_B005POOJHG5099993/?tag=hyprod-20&creative=394997&creativeASIN=B005POOJHG&linkCode=df0&hvadid=167118301188&hvpos=1o1&hvnetw=g&hvrand=14084295331685499952&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9028321&hvtargid=pla-311195096389

I was in a similar situation to you a few months ago, mainly a PC gamer, with the occasional film. Most of the advice on here was for US brands unavailable without expensive postage costs in the UK.

My desk space was a bit limited, so I ended up using a LEPY 2024A Plus (£24) and Wharfedale Diamond 9.0 (£60), they have almost no background hiss (with my ear to the speaker, I can only just hear it over my quiet PC fans, and my PC is under the desk). I can't hear any background hiss from my normal typing / gaming position.

They go really loud for PC gaming (assuming you're sat in from of the computer). It's uncomfortably loud at 50% volume. I'm using the power supply that came with the amp, but some have replaced it with a more potent one.

If you sign up with richersounds email list, then occasionally the Wharfedale 9.0's go on offer for £40, but it's a collect-from-store only offer, not online.

I was a bit limited on desk space around my PC, but if you've got more space, you could try the Wharfedale 9.1's, (£100), maybe with a SMSL SA-50 (£52). The speakers are notably larger. Double check the plug socket if you get an SMSL though, some reports of non-fused plugs.

Whatever you get, make sure they are front-ported if they'll be against a wall.

Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Complete Kit https://www.amazon.com/dp/B01ENFOHN8?ref=yo_pop_ma_swf

I'm not as well versed in orchids as i am in cacti, but i still do.
Most (of course there are exceptions.. as usual) orchids are epiphytes which means they grown on some trees and their roots dont even contact any kind of soil; they just grip on to branches.
So their soil requirements are rather special as well; you can keep a lot of orchids in very rough bark mulch or even just cut up pieces of cork. Compact soil that keeps moisture for too long will make their roots rot.


The next issue with their usual habitat is the water - what they get is mostly rainwater with a few diluted minerals; they get some nutrients from whatever rotting piece of plant debris or bark they are sitting on.
Compare that to what we usually get from our taps; very mineral rich, hard water. Most orchids dont like that very much. Phalaenopsis can pretty much deal with it, but still prefer softer water.


If you really wanna get into the details get one of these things: https://www.amazon.com/Water-Quality-Meter-Pancellent-Temperature/dp/B06XCMNFVQ


I usually water my orchids with distilled water that has been buffed up to a conductivity of 300µS/cm with orchid fertilizer, since the water from my tap is too hard for any kind of orchid.

That's quite the range. I'd recommend getting one of these to get a more accurate reading.

going shopping? Here is a list

but seriously now, do you have fertilizer dedicated to veg and flower? If you don't already, maybe a pH pen to make sure you water is properly pH'ed. If you're worried about smell, maybe a carbon filter?

You have most of the essentials right now. The light, the timer, the grow tent environment (mylar). All I could really think of I added above. Good luck with the grow!

I'm just a small-time hobbyist with a few basil plants in my window and due to my limited budget I've been using a super cheap no-name sketchy $13 chinese meter. What are the technical differences between something like that and the meters you sell, and what advantages does that provide?

Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Complete Kit

https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_api_i_u3h7CbEN27BGJ

Sticking with Apera I recommend the PH60.
https://www.amazon.com/Apera-Instruments-AI311-Replaceable-2-00-16-00/dp/B01ENFOIQE/ref=cm_cr_arp_d_product_top?ie=UTF8

Replaceable tips are awesome!

it's worth 20$... sorry had a pretty similar one died after 6 months...

you could try and calibrate if you have calibrating powder

​

bought this... so far so good and it feels way more accurate ... for 6x the price

https://www.amazon.ca/gp/product/B01ENFOIQE/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1

Why milk curdles under acid conditions:

https://www.thekitchn.com/the-science-behind-why-acid-curdles-milk-222962

Basic pH meters are surprisingly cheap but you should calibrate with ‘buffers’ if you want to be more accurate (come supplied with this model):

https://www.amazon.co.uk/dp/B071XFRLSN/ref=cm_sw_r_cp_api_i_C-aADbGFXZCNH

(Am chemist)

This one: https://www.amazon.com/VANTAKOOL-Accuracy-Measurement-Household-Drinking/dp/B07JLWV73Z?ref_=Oct_CARAsinC_393271011_1&pf_rd_r=Z0BFSFYEVX6BQ74R42M2&pf_rd_p=ee32e637-71ad-5c35-a048-49bb70f82870&pf_rd_s=mobile-hybrid-6&pf_rd_t=30901&pf_rd_i=393271011&pf_rd_m=ATVPDKIKX0DER

https://www.amazon.com/gp/offer-listing/B06XTL5M5T/ref=dp_olp_new_mbc?ie=UTF8&condition=new

4-Pack Premium ISO and CE Certified Lunt Solar Kid Size Eclipse Viewing Glasses

Lunt Solar Systems

$35 + $10 Next Day

I finally found and purchased these that have a 0-14 pH testing range, on Amazon. I think for increments smaller than 1 your best bet is to get a digital pH meter (something like this), but those can be pricey.

I've had one of these for almost two years with no problems: http://www.amazon.com/Oakton-EcoTestr-Waterproof-Tester-Range/dp/B004G8PWAU ... Try finding that, or similar on Amazon UK. I think, if my £>$ math is correct, it should be about £30-40

Although I need mine for my own hydroponic botanical needs, I can recommend the meter I use as a low-cost solution if nobody has one for you.

This is the one I use, and it's quite cheap at $15, but will still read just fine. Just get some calibration solution and check it a couple times between uses, until you are satisfied it is keeping calibration, then you can go longer without testing. I kept checking mine and it never lost calibration, so I've been pretty happy with it. It is not waterproof though, and after dropping mine in the reservoir I had to relearn how to read it due to to LCD cells lighting up when they shouldn't (so 5.8 read as 9.8 because the extra line on the 5 lit up.) After recalibrating, it was fine, just wonky to read, testing against drops and ph buffered nutrient solution (always sets itself to 5.8ph) showed it was calibrated fine. So just don't get it wet, and be careful not to break the probe putting the cap back on, as it's made of glass and the cap edge can crush it.

Another better quality one that I hope to get soon is this one, although it is more expensive at $50, it is also waterproof and just all around better quality.

so i would suggest a 1000w MH/HPS setup with a 6 inch inline fan and carbon filter (for the smell). you'll probably need to spend 30$ on nutrients you'll need something to adjust the pH of your feed get a good pH meter blue labs is one of the best brands for this tech, you will also need a 24h timer and then to choose a medium: soil, dwc, soilless, coco, rockwool, etc. that should bring you under budget.

I second the bluelab or the Hanna

That speaker is even lower budget than the turntable and it would be terrible. Half the point of vinyl is that it is analog. Converting the analog signal to compressed digital bluetooth and back to analog for amplification to a speaker is ridiculous.

Just get a turntable by itself and a PAIR of powered or passive bookshelf speakers for stereo separation.

Look used for everything if on a low budget. A stereo or AV receiver and a pair of passive bookshelf speakers.

Start with speakers for Spotify then add the turntable later.

New speaker options:

• Or Wharfedale 9.0 Black £60 or similar bookshelf speakers with a Nobsound Mini Amp £27 or a SMSL SA 36A £45 and you can later upgrade one part at a time.
  
• Edifier R1280T £100 are powered/active speakers with an amp inside, just not as flexible as separate speakers and an amp or receiver.

I use this.

It's cheap, and has been reliable for over a year. I have compared results to the pH meter with the fresh water master kit, and it's been pretty solid.

Stealing /u/brulosopher's suggestion:

The cheap one

The "really badass, but more expensive" one

From his article:

http://brulosophy.com/2014/09/18/a-pragmatic-approach-to-water-manipulation/

That's a lot of money for a fan. You could always get a cheaper fan that moves more cfm and simply get a fan silencer. You would still save money at that rate and spend the rest on an enclosed hood or cool tube to help with temperature control.

Overall you're good.

Fan Silencer (out of stock at the moment, but cheaper): http://www.amazon.com/VenTech-VT-FS-6-Muffler-Silencer/dp/B00HWILBSS/ref=sr_1_3?ie=UTF8&qid=1450225496&sr=8-3&keywords=fan+silencer

Fan silencer (more expensive, but in stock): http://www.amazon.com/Phresh-701200-Silencer-4-Inch-12-Inch/dp/B007ZU5YQS/ref=sr_1_6?ie=UTF8&qid=1450225496&sr=8-6&keywords=fan+silencer

Hood Upgrade: http://www.amazon.com/Apollo-Horticulture-GLRLS24-Hydroponic-Reflector/dp/B00BMVK8HG/ref=sr_1_1?ie=UTF8&qid=1450225652&sr=8-1&keywords=air+cooled+hood

Fan and Carbon Scrubber Replacements: http://www.amazon.com/VenTech-VT-IF6-CF6-B-Controller/dp/B0051HDECS/ref=sr_1_1?ie=UTF8&qid=1450225799&sr=8-1&keywords=ventech+vt+if6

If you're going to be flowering in the tent, I would recommend lightproofing it, as well. Use only the ports in your tent for intake and cut some carbon filters to size. http://www.amazon.com/Carbon-Pre-Filter-38002-Activated-Sheets/dp/B00LXIWNT4/ref=sr_1_1?ie=UTF8&qid=1450225982&sr=8-1&keywords=carbon+filter+sheet

Your tent is a little expensive, too. If that's the one you have your heart set on, go for it. As an alternative, I suggest http://www.amazon.com/MILLIARD-Reflective-Hydroponic-Mylar-Window/dp/B00ETBDX14/ref=sr_1_1?ie=UTF8&qid=1450226158&sr=8-1&keywords=milliard+grow+tent

You will want a fan or two of some kind to circulate air inside the tent. 6 Inch clip fans are popular. I use a pair of 4 inch clip fans and a tower fan.

Make sure to look into a DIY Ona Bucket for smells. During flower it will stink up your room when you open the tent. Just turn the Ona bucket on a little before that and you're good. If you're really paranoid about smell, you can also get an inline carbon scrubber. They're pretty expensive and probably not necessary unless you pick some especially fragrant strains. http://www.amazon.com/Phresh-500-Inline-Filter-6-Inch/dp/B00CJIMUH2/ref=sr_1_1?ie=UTF8&qid=1450226390&sr=8-1&keywords=phresh+inline

That's my $.02, anyway. There are much more experienced growers here.

Two questions. First, I bought this pH meter. Reviews seemed generally positive, but I found even having it sit still in calibrating solution for an hour it jumps around SO much which seemed to make it unusable. Is this common? Are there other products that zero in on a pH value better and don't cost a fortune?

Second, I bought this refractometer. Seemed to work very well for OG measurement as compared to my hygrometer. Can someone clarify, can I use this for later SG measurements? Based on discussion, I must use the Brix scale, then convert to SG?

dr meter

EC meter you can get away with a cheap one. PH Meter, the cheap ones are junk, spend around $50+ for a good PH meter. PH is critical to get right, so spend some money on a PH meter to make sure you always have that dialed in.

​

I have this PH meter, had to calibrate it, but it has been ROCK solid so far.

​

https://www.amazon.com/gp/product/B00ST3VTQ4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Meh... Def not worth the trouble imo.

This one is awesome. https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_apap_wRPEXgJRekaAc

If that's too expensive for your price range just do the strips or the drops. Waaaay more reliable.

Us or Canada? Cuz he linked Canadian amazon. Apera also has a really good cheaper model that i use.

Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Complete Kit https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_apa_i_OZpvCbD6G9EE5

I have an Apera pen and it works really well. I like it for sure.
I used to use the drops suck, and they suck. It's hard to get an accurate reading. The pen is great for accurate readings, but it takes up to 20 seconds to fix on the correct pH, which at times feels like forever.

This is the one I have: https://www.amazon.com/Apera-Instruments-AI209-Waterproof-Accuracy/dp/B01ENFOHN8/ref=sr_1_2?ie=UTF8&qid=1499548253&sr=8-2&keywords=ph+pen

I have tried a few of the $15-$25 pens on amazon, they all seem very similar and very inaccurate. Eventually I got tired of it and opted to spend a bit more ($50ish) and picked up this meter:

Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Complete Kit https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_apip_NeCAe1dMSV4Nc

And have been extremely pleased with its performance. Quick and accurate readings for both pH and water temperature.

Get the Apera. DON'T GET THE BLUELAB.

> if you dont mind having to calibrate your ph pen every time you use it just get a cheap 10 dollar ph pen. I dont mean to imply that all of them need to be calibrated every single time but i am saying don't expect them to work perfectly.. i advise you just assume that you will need to be calibrating it very very often if you use it very very often so you dont set yourself up for disappointment.
>
> but If you want a solid ph pen get an apera ph pen (i have this one)
>
> I had a yellow ph pen that lasted me a couple months before it went to crap. then i went through two broken Bluelab ph Pens (they werent mine though they were used and handed down from a close friend). I always read about bluelab being the ph pen every one should have. that is bullshit imo. If you do your research you will see lots of stories with bluelabs going to crap, probably because they dried out... but stilll.... its very commmon...
>
> i HIGHLY recommend apera ph Pens. I got the 50 dollar version and it works perfectly just like a bluelab (in working condition) does. It has a one button auto calibration... and it can calibrate using three points if you want.. and its dead on accurate and reminds you when to calibrate and it tells you when the ph reading is stable.. and tells you the temperature of the solution.. Its nice for 50 dollars. Or you can dish out more and get the version that has a repplaceable probe. Keep in mind the replaceable probe is about 40 bucks so i ended up getting the 50-dollar pen thinking that if it ever goes to crap i might as well buy a nother one instead of just replacing the probe...
>
> apera ph pen is probably the only ph pen that averages 4.5 star reviews on amazon (140 reviews is a lot imo). When it comes to ph pens the reviews on amazon speak for themselves if you ask me

https://www.reddit.com/r/microgrowery/comments/6vdl6n/getting_into_dwc_hydroponics_bluelab_guardianpens/dlzpu78/

I wouldn't use the strips they are shit. Get a liquid ph tester kit at the very least, I use this ph meter it works like a charm don't waste money on a cheap ph meter either. You will regret it.

Here's what I've found so far. The search continues...

Refractometer with Brix + SG scales - $19 Brülosophy link | non-affiliate link

5 gallon No Chill cube - $11.50 Brülosophy link | non-affiliate link

pH Meter (starts 3:15pm) Brülosophy link | non-affiliate link

40x-1000x Microscope (starts 3:50pm) Brülosophy link | non-affiliate link

I actually didn't tally up the cost as that wasn't really of a concern to me, but I'll try my best to provide links to the things I bought for this. Feel free to add it up for me!

• Lighting
  
  • T-5 Grow light (came with 6500K bulbs)
    
  • 2700K bulbs
    
  • Grow light hangers
    
• Grow medium
  
  • Net Cups
    
  • Black Buckets
    
  • Black lids
    
• Nutrients
  
  • General Hydroponics Flora Series
    
  • General Hydroponics pH control kit
    
  • pH/EC/Temp Meters
    
• Grow tent
  
• Air ventilation
  
  • The only thing I ended up using from this kit was the cheapest part, the ventilation duct...
    
  • The fan from this kit is way too powerful for my setup because my humidifier couldn't keep up
    
  • I didn't use the carbon filter because I'm not growing weed.
    
• Water Distiller
  
• Humidifier
  
  • The cheaper the humidifier, the better. I first bought (and destroyed) one that had some sort of digital switch, so it would always be in the off state when you first supply power to it, meaning you can't turn it on/off with just a relay.
    
• Plumbing
  
  • Aquatec 8852 booster pump
    
  • 2 Gallon accumulator tank
    
  • Pressure relief valve
    
  • Tubing
    
  • Inline Pre-filter (Sorry they must have taken the product down...)
    
  • Misting nozzle T's
    
  • Tube ball valves
    
  • Analog pressure gauge
    
  • Misting Nozzles
    
    • Note that these nozzles are meant for WAY higher pressure systems (~1000psi) and I actually had to take out the spring for them to operate correctly, but they never clogged up, are easy to clean, and worked perfectly for me!
      
• Electronics
  
  • Raspberry Pi 3 kit
    
  • Humidity sensor
    
  • Pressure sensor
    
  • Water solenoid valve
    
  • 5V 4-channel relay module
    
  • Analog-to-digital converter
    
  • 24V to 12V converter
    
  • 24V Power supply
    
  • Resistor kit
    
  • Semiconductor kit
    
  • Circuit boards
    
  • Standoffs
    
• Wiring
  
  • 22 gauge stranded wire
    
  • 22 gauge solid wire
    
  • Power supply cord
    
• Connectors
  
  • Electronic Connectors
    
    • JST-XHP Connectors
      
    • JST-SM Connectors
      
    • Dupont Connectors
      
  • Plumbing Connectors
    
    • Bulkhead connectors
      
    • Quick-connect kit
      
    • NPT to quick-connect connector
      
      I also bought various tools, like crimpers, Dremel kit, drill, etc, but I don't consider those to be project-specific as I'll have them for the foreseeable future. Let me know if there's anything you see that you think I missed!
      

I've coded these posts to upload automatically every week. hope you enjoy the timelapse!

Days from germination: 52

Seeds

• 2 Tangerine Dream - Growers Choice
  
• 2 Critical Purple - Growers Choice
  
• 1 Blue Dragon - From a friend.
  
  

  Medium
  

• coco coir
  
• 5 gallon fabric pots
  
  

  Schedule
  

  
  

• 24 Hours on
  
  

  Nutrients
  

  
  

• Cann A+B
  
  

  Grow Setup:
  

  
  |Item|Link|Price|
  |:--|:--|:--|
  |grow tent| https://amzn.to/2oeJ92h |$110|
  |inline fan| https://amzn.to/2p47iJb |$102|
  |grow lights x 2 | https://amzn.to/2nBbdNn |$540|
  |blurple light | https://amzn.to/2p3ZaII | $100|
  |humidifier| https://amzn.to/2nBQzwC | $71|
  |tower fan| https://amzn.to/2nBQzwC | $47|
  |clip fans| https://amzn.to/2paof53 | $21|
  |grow bags| https://amzn.to/2ontyNK | $13|
  |coco coir x 2| https://amzn.to/2omfi80 | $50
  
  
  

  some other items:
  

  
  |Item|Link|Price|
  |:--|:--|:--|
  | humidity monitor| https://amzn.to/2p47fNy | $10|
  | eye wear| https://amzn.to/2oloARE | $15|
  | raspberry pi| https://amzn.to/2nrAvO5 | $50|
  | webcam x 2| https://amzn.to/2og81H4 | $70|
  | ph tester| https://amzn.to/2mJiA4R | $15|
  
  

• something i've probably forgotten
  
  
  All in all it's cost just under $1000 USD

PH and TDS meter (hanna brand is expensive AF, there are cheaper ofc)

PH up / down

Hygrometer / thermometer

Worried about smell?

I use http://www.amazon.com/Hanna-Instruments-Waterproof-Conductivity-Tester/dp/B002ZG8L58/ref=cm_cr_pr_product_top

However, I got it much much cheaper than that price. I also don't see any of the calibration issues that a couple of the reviews say. I guess mileage varies.

https://www.amazon.ca/Bluelab-BLU2300E-Combo-Conductivity-Temperature/dp/B003PD2N8Q/ref=mp_s_a_1_1?ie=UTF8&qid=1550546905&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=bluelab+combo+meter

Just ordered this

http://www.amazon.com/Bluelab-BLU2300E-BlueLab-Combo-Meter/dp/B003PD2N8Q/ref=sr_1_2?ie=UTF8&qid=1381325878&sr=8-2&keywords=bluelab+ph+meter

There are two pH pens: One for soil, and one for water.

In my experiences and others, soil pH pens aren't the most accurate, so a liquid pH meter has done well measuring the pH of the water that is about to go in, and the pH of the water coming out the drain holes.

So if you were to water in soil with say 6.7 pH water/nutes, and it came out at 6.5, you'd know your soil was around 6.3 pH. This way, you can have one meter that's practical for two functions!

This would be one of the most recommened

This is the one I always see suggested

https://smile.amazon.com/Oakton-EcoTestr-Waterproof-Tester-Range/dp/B004G8PWAU

With a lab-style ph meter, like this one or this one. I use the oakton because it is temperature corrected, whereas other meters require you test a solution at a specific temperature for an accurate reading. You use them to test the runoff water when you water the plants. You measure the PH of the water you put into the pot, and see how much it changes when it comes out, which will give you an idea about the PH level of your soil. For instance, if I measured my water to be 7.0 going in, and found it to be 5.8 coming out, I would know my soil is at least 5.8 on the ph scale or lower. However, I find that just measuring the PH of what I put in, the runoff doesn't matter so much, if the soil is properly prepared. I would go on, but I'll stop myself here for the sake a brevity; there's plenty to learn if you seek the information.

Having said that, I will say there are some soil probe type meters that work well, but you have to calibrate it, and care for and store the electrode properly, which can get difficult because the electrodes are often very long and don't have a cap/case to hold storage solution. Though, it does require you mix water with your soil for the electrode to get a proper reading, so really testing the runoff is the same as (properly) using a soil probe, but the lab meters will be more accurate, easier to use, calibrate, store, and care for properly.


edit: oh yeah, PH indicator drops can also be used, but they are not nearly as accurate or reliable, and can sometimes be difficult to read since your runoff solution will not be perfectly clear.

If you continue to plan on doing dwc grows your need a PH meter get this one.

http://www.amazon.com/Oakton-EcoTestr-Waterproof-Tester-Range/dp/B004G8PWAU/ref=sr_1_2?ie=UTF8&qid=1372348082&sr=8-2&keywords=ph+meter

If the leaves that are turning brown are touching the soil, I would consider that the reason. If not, possibly a ph issue? I would definitely invest in an accurate meter regardless. I use this and haven't had any issues, but most people will recommend the Oakton

I've used this one that was $50 for over a year and it has been reliable. I got it because it is comparable in quality to the BlueLab ones (which some people like here) without being $80. Their are ones for cheaper like this one, but they should be avoided like the plague because they lose calibration almost immediately. With the one I showed above, I've only had to calibrate it once every 2 grows while the other one would lose its calibration after a few weeks.

The most important tool i have is:

Oakton ph2 pen with calibration solution(s). Proper ph adjusting base and acid too.

Bonus:
HPS lighting as its usually cheap and very effective. LED is still expensive.

lots of jars to store the massive harvests you will get.

Oakton 2
I started off with one of the yellow cheap models, dropped it from 2 feet above ground and it immediately died. The Oakton is leaps and bounds more accurate, faster, and waterproof if you accidentally drop it in your res.

EDIT: The cap on the Oakton is perfect for keeping a little storage solution on the tip, which keeps it accurate for longer and will extend the lifetime of the device.

http://www.amazon.com/General-Hydroponics-GH1514-Control-Kit/dp/B000BNKWZY

Kit comes with test indicator. Although with a 50gal tank, you might want a bigger quantity than the 8fl.oz bottles there. Getting a digital pH tester will save some time as well.

I love this one http://www.amazon.com/gp/product/B004G8PWAU/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1

What about this one?

http://www.amazon.com/gp/aw/d/B004G8PWAU/ref=mp_s_a_1_1?qid=1373158088&sr=1-1&pi=SL75

I think you should get one of these http://amzn.com/B004G8PWAU
You'll need 7.0 and 4.01 solution too which would put you over your 50 a bit unfortunately.

Just dont get the cheap milwaukee pens, they are awful

ph drops are pretty cheap for a general idea otherwise

i went through 2 cheap ones before just buying this one and it has been perfect for almost two years. we only really calibrate maybe once/round and it's usually not even 0.1 off. it's also waterproof which can be handy depending on how you grow and how clumsy you are :)

pH Tester

Here's what I use.

Bluelab PENPH pH Pen for Plant Germination https://www.amazon.com/dp/B005POOJHG/ref=cm_sw_r_cp_apa_i_h09TCbCTSEYSD

https://www.amazon.com/Bluelab-PENPH-Pen-Plant-Germination/dp/B005POOJHG/ref=asc_df_B005POOJHG/?tag=hyprod-20&linkCode=df0&hvadid=167118301188&hvpos=1o1&hvnetw=g&hvrand=15543687523906767160&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9030904&hvtargid=pla-311195096389&psc=1

We use these on a commercial grow. 1000+ plants, 65 resi’s.
only have 4 of these meters and only have to replace one about every year. Kinda pricey, but accurate, dependable, and very well built.
Just try not to drop it into hard surfaces, that seems to do them in pretty quickly lol.
If your grow is set up somewhat permanently, I’d go with the Bluelab guardian. Forget ph’ing every again

https://www.amazon.com/Bluelab-pH-Pen-Measuring-Temperature/dp/B005POOJHG/ref=sr_1_1?ie=UTF8&qid=1480919988&sr=8-1&keywords=bluelabs+ph+pen

Probably the best pen you can get :P

Pick up These speakers, this SMSL amp, funny that the product is listed in feet but this speaker wire should be more than adequate. The cable used to connect to your SMSL amp depends on what you will be playing music from.

http://www.amazon.co.uk/Wharfedale-9-0-Black/dp/B00A1E94J8/ref=sr_1_4?s=electronics&ie=UTF8&qid=1421467165&sr=1-4&keywords=bookshelf+speakers#Ask

Yeah I didn't go into it expecting much (an ounce or two) so we'll see what it comes out too, i'll be happy to get that.

Here are the links for the meters I get. I tested the ph meter and compared it to drops and it is spot on. Not sure about the ppm one but it got good reviews.

PPM Meter

PH Meter

Thanks for checking out my grow!

Brand doesn't matter to me, I always get the yellow and black ones. They are branded under so many different names.

http://www.amazon.com/gp/aw/d/B00CH3QZSE/ref=mp_s_a_1_1?qid=1411073603&sr=8-1&pi=SY200_QL40

That plus a good calibration kit($15) and you are good to go. I will typically throw them out if they start malfunctioning but I usually get at least a year out of them

Phresh in-line filter 6in.

https://www.amazon.com/Phresh-Inline-Filter-500-CFM/dp/B00CJIMUH2/ref=mp_s_a_1_fkmrnull_4?keywords=phresh+inline+filter+6+in+500+cfm&qid=1558392827&s=gateway&sprefix=phresh+in&sr=8-4-fkmrnull

By FAR the best I’ve ever used... worth every dollar

Just a note on that soil pH meter- for about $4 more, you can get a pH pen that can be calibrated for accuracy. I have had bad luck with the dual prong, in the soil types like that one, not particularly accurate.

http://www.amazon.com/Automatic-Temperature-Compensation-Measurement-Resolution/dp/B00LNSEZH2/ref=sr_1_4?ie=UTF8&qid=1421335703&sr=8-4&keywords=dr+ph+meter

This is the one I have. Good because it reads in .01 resolution. Reads out just fine. Just make sure you purchase 4 and 7 pH calibration solution, as well as storage solution so the electrode doesn't wear out. I'm sure the more expensive ones are tres better, but I don't have that kind of a budget.

Have you any interest in a ph meter? THey aren't super expensive, and are really useful in your brew kit. I also use mine to test viability of starsan solution, and they could be used to test "sourness" of a lacto ferment. At least you'd know ahead of time if there are fluctuations in your base water, which would explain mash fluctuations.

http://www.amazon.com/dp/B00LNSEZH2/

I use a baking soda solution and acetic acid (vinegar) to calibrate mine on the cheap.

Nice tip, i'll remember it ! Just tried it, i mixed 3tbsp of soil with 3tbsp of tap water in a glass. I filled another glass with just tap water. 20mins after, the glass of tap water is at 6PH and the mix of soil & water is at around 5.75

So if this test is accurate it means my soil PH is under 6 so i should stop feeding them lemon juice right now. Is there something like lemon juice to raise PH or should i just stop messing with PH and feed them water ?

Note that the PH tester i'm using is very cheap and could also be inaccurate : https://www.amazon.ca/gp/product/B00LNSEZH2/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

Looks like bad pH is making your plant unable to take up the nutrients it needs. Grab a pH tester from Amazon and keep it between 6.5-7.0. My household tap water tests at a 9.1, as high as 9.6 sometimes, and that's way too alkaline for the plant.

I wanted to try testing the ph of my products and I was wondering if there was something better than the strips.
I fount this in amazon. It's for testing the ph of pools but it looks like it could work for cosmetics? I have done a quick search but I only found people using the stribs in the subreddit (maybe I didn't search correctly), anyone used something similar to this?

I paid 13.95 I have dropped it twice in the reservoir and it works accurately every time and bonus, I don't feel bad if it breaks.

I love this cheap ph pen: http://www.amazon.com/gp/product/B00N7432II?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

First off, in order to use a pH meter, you must calibrate it every. single. time. Or at least once a week. They're notorious for drifting even when stored correctly. You will need 4.0 and 7.0 calibration solutions, they're sold as powder or in liquid form. You should also have probe cleaning and probe storage solution. Contact lens solution (not hydrogen peroxide stuff) can work as probe cleaning solution in this context, as it works well on organics in a gentle way.

Unfortunately the $10 specials aren't really that great, and you won't get really repeatable results until you hit about the $35-$50 price point. At this price point they should start to have replaceable probes. e.g.: this or this . I'm pretty sure /u/chino_brews knows the specific generic design name of the 2nd one I linked, lots of different vendors have a house brand white box version of it. Fisher Scientific design that went off patent, can't remember the number.

Unfortunately, that meter probably wasn’t going to be very accurate or have a long life anyway. The cheapest meter I recommend is the 8689 model, which is about $70 from Thermoworks, but you can get it for about $45 from China. Probes are good for a year, maybe two, in most cases although some get a slightly longer life with excellent care. The probe on the 8689 is replaceable and readily available so you can figure about $18/year in equipment cost if your probe works for two years.

I’ve seen some users in this sub say this one is OK too, but I can’t vouch for it:

https://www.amazon.com/dp/B00ST3VTQ4?aaxitk=PfM4qruJcvUcFfTDj2w9mw

The most recommended pH meters run in the $120 to $150 range. I figured I did not want to ruin a good meter while I learn how to use, calibrate, and store a pH meter, so I picked up this $40 one (the reviews seemed better than the $20 ones).

https://www.amazon.com/Dr-meter-PH100-V-Resolution-Accuracy-Measurement/dp/B00ST3VTQ4

There are plenty of threads on pH meters if you search this subreddit.

I don't have a TDS meter, but I get the impression that the under $20 ones are fine for the job. I am not positive what use a TDS meter plays in brewing. I could see where it might be useful for checking RO water, or maybe getting a feel for how much your tap water varies month to month. Do others find a TDS meter useful?

For you or somebody else? A pH meter does required a bit of an investment in time learning how to calibrate, store and use...as well as learning about water chemistry/how to adjust pH.

I went toward the cheap side since I figured I would rather ruin a cheap meter than an expensive one. After 7 months I don't have any regrets with the $40 Dr Meter PH100. That Apera model seems recommended often.

The meter is a matter of preference. I would shop based on how it's calibrated...some use 6.86 and 4.01 solutions but meters that calibrate at 7 & 4 may be more expensive but those solutions are cheaper. I have had probes break too so don't go crazy on price. I like this one because of the case it comes with along with the calibrating fluid. I would also get some sort of dropper it will help to adjust your ph. If it is just clean water a single drop of ph down will lower the oh by several points. Aim for 5.5-6.5

Draining and replacing the water won't solve your issue right away. As long as the plant stays alive and growing it should be fine. If you can remove the plant out of the bucket and run some water over it for a few minutes and replace the water it would probably help.

Edit: found a photo of my tomato last year. This thing got like 8ft tall.

http://imgur.com/a/cpSRuql

The only way I know of accurately testing pH in the soil is by testing the run-off from your waterings with an electronic meter.

Spring for a pH meter. This one comes with a full calibrations and testing kit for about $80. Here's the same one, without the extras for about $45.

I got this Apera Instruments pH pen style meter. It was about 0.2 out of calibration after ~2 months of use, it takes about 30 - 45 seconds for the pH to stop slowly changing... really annoying. It's fairly reliable but slow. Overall I'm fairly happy with it as a new grower, definitely meets my needs.

Just received this ph meter today:
https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_api_-iXpzb0Y5RXN0

Was really easy to calibrate and not too expensive imo. Will update with any issues, but so far it's perfect for my needs.

Apera Instruments makes very very good ph pens. I’ve had mine for many months and I’ve calibrated it 2 times. I didn’t even need to calibrate it the 2nd time. I just wanted to see if it was off after a couple months, but it was still good! It’s still correctly calibrated right now, which has been another couple months since I did it last

I know some people use the cheap 15-20$ Orange and yellow ones amazon has with some pretty good results. I would personally spend a tad bit more and get one from Apera if you can.

Here’s the one I have: Apera ph20

I apologize for not linking. That was poor Reddit etiquette.


Apera Instruments AI209 PH20... https://www.amazon.com/dp/B01ENFOHN8?ref=ppx_pop_mob_ap_share

Professional TDS ppm Conductivity... https://www.amazon.com/dp/B01FPG89CE?ref=ppx_pop_mob_ap_share

> Use Environment: RH 95%, 0-50℃（32～122℉ )

Listed right in the item description.

For what it's worth, I picked up this one and it's been great.

Bok choi has been the easiest thing for me to grow by far so there's definitely something off in your system.

Having a pH pen and an EC pen is pretty much critical to diagnosing nutrient solution problems. This is the pH meter I have, which is kind of mid-tier but comes with calibration solution. Also pick up some storage solution as it will reduce how often you have to recalibrate the pen vs keeping it dry. EC meter you can go cheap on, I use this one and get good results.

i had the yellow one threw it away and got this https://www.amazon.com/gp/product/B01ENFOHN8/ref=s9_acsd_topr_hd_bw_bQc7kp_c_x_w?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=merchandised-search-3&pf_rd_r=YEXJEDDCYN7YESJAB4XY&pf_rd_t=101&pf_rd_p=c8d54159-ecd9-53c4-bc0e-a00d14b99e74&pf_rd_i=393271011 it comes with 4ph and 7ph solution so you can calibrate it when ever too

Supposedly the probe I use has ATC. I've tested the same sample at mash temp vs 60 degrees and got the exact same reading. YMMV

This is what I have:
https://www.amazon.com/gp/aw/d/B01ENFOHN8/ref=mp_s_a_1_4?ie=UTF8&qid=1525700380&sr=8-4&pi=AC_SX236_SY340_FMwebp_QL65&keywords=ph+meters

About $80. It's a lower-mid tier Apera. You could get one of their $40-$50 and I'm sure you'd be fine. They come in an awesome little case with a foam insert to hold the meter, testing cups, and calibration liquid. Here's a link if you're interested: https://www.amazon.com/Apera-Instruments-AI311-Replaceable-2-00-16-00/dp/B01ENFOIQE/ref=sr_1_2_sspa?s=industrial&ie=UTF8&qid=1520625309&sr=1-2-spons&keywords=apera&psc=1

+1 for Apera, I just decided on this one by them. It was ~15 dollars more expensive than the model you have, but the increased pH sensitivity as well as the fact that it includes storage solution was more than enough for me to be willing to shell out the few extra bucks. Also, another super cool feature of this model is that you can buy replacement probes if you ever damage your current one, which will save you money in the long run. These also seemed to have a consistently higher rating than any other pH pens I looked at on amazon, and their customer service is pretty stellar from what I've gathered. Look into these too OP!

I’d guess this one:

https://www.amazon.com/gp/aw/d/B01ENFOIQE/ref=sspa_mw_detail_2?ie=UTF8&psc=1

I have it as well, and highly recommend it.

I use this one. It has a replaceable probe, 1–3 point calibration, and automatic temperature compensation. You can also get other types of probes if you get into cheese-making or something. I'd also recommend buying bigger bottles of calibration solutions and storage solution.

Also be aware that the probes on pH meters need to be replaced periodically. As much as you hate strips, meters are an ongoing expense.

Look into this one.

The pH meters with the little metal spike and gauge do fucking suck. If you do anything hydroponic related, you absolutely need to have a good meter. One fuck up 3 months in and you have a big crop of stinky hay.

Coconut is a great medium. Stick with organic nutes. I used neptune's harvest to great effect, but not sure how available they are.

I can't stress to you enough though, get a good pH meter. $50 isn't shit when compared to the time and energy you'll have spent on a crop that goes bad down the road. The motto of 'cry once, not twice' is really appropriate with growing pot.

Most people use one of these.

Just make sure they're not knockoffs. I've read there are bad ones out there that are selling pretty cheap. I ended up getting 4 pairs on Amazon for $20. But, they're from the manufacturer that NASA recommends (https://eclipse.aas.org/resources/solar-filters)

Here are the ones I bought:

4-Pack Premium ISO and CE Certified Lunt Solar Kid Size Eclipse Viewing Glasses https://www.amazon.com/dp/B06XTL5M5T/ref=cm_sw_r_cp_apip_n8zvg9JP66AiE

I'm also making pinhole boxes with the kiddos.

Stay safe!

Yea, pinapple is highly active and prone to develop white kham yeast long term. One of the reasons I finally processed is that it kept building white kham yeast and I hot tired of scooping it out. It's totally safe, just looked yucky. One way to avoid this is ferment the pinapple separately. This is going to be my go to way going forward. Ferment pineapple for just a week or so.

Anyway, I got a pH tester at Amazon years ago. Looks like this.

Digital PH Meter, PH Meter 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium Water PH Tester Design with ATC (yellow) https://www.amazon.com/dp/B07JLWV73Z/ref=cm_sw_r_cp_apa_i_jGf0DbAFSEWGZ

cheap ph tester

calibration packs for the ph tester

ph up and ph down (also comes with chemical test, but I’d get the pen)

I would definitely order a digital one.

I just got third one last week:
Pancellent Water Quality Test Meter TDS PH 2 in 1 Set 0-9990 PPM Measurement Range 1 PPM Resolution 2% Readout Accuracy (Yellow)
https://www.amazon.com/dp/B078NJR692/ref=cm_sw_r_cp_api_i_m0XdBb3BW8FP7

It only 20 usd and it comes with a ppm meter and both seem to work great they even come with stuff to calibrate with. I’m really kicking myself for not buying one before because I have had bad problems with ph in the past.

I recently got This meter and it’s worked well for me. Calibrating was easy. It a really basic meter so it’s not super high quality.

https://www.amazon.com/dp/B07JLWV73Z/ref=cm_sw_r_cp_apa_i_Dud6CbZ9J7B33

I've used this one thru my first grow. Haven't had a problem, seems pretty damn accurate so far against the ink tests I got from my PH adjusters.

https://www.amazon.com/VANTAKOOL-Accuracy-Measurement-Household-Drinking/dp/B07JLWV73Z/ref=mp_s_a_1_3?ie=UTF8&qid=1549716410&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=ph+pen+tester&dpPl=1&dpID=41T-lwa5FHL&ref=plSrch




Your welcome

https://www.amazon.com/gp/product/B078NJR692/ref=ox_sc_act_title_1?smid=A3BQ31VG0PY7J4&psc=1

Just ordered that set.

Based on my TDS meter, I was at 550-560 ppm for my nutrient solution (the pH and TDS meter were bought here: https://smile.amazon.com/gp/product/B078NJR692/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1).

My nutrient mix was 1ml/gallon of each part and 1.5ml/gallon of the cal-mag. pH down was added 1ml at a time until I got the right pH balance, currently at 6.2. Would you still do a complete flush of the system based on this information?

The plant isn't particularly valuable, but it's also currently the only pepper plant I have, which in a sense does make it valuable as I can't get another one. I'd like to try to salvage this plant if I can, that way I can learn to dial the setting in a little bit more, but it's also not a requirement at this time either.

For sure ! https://www.amazon.com/Pancellent-Quality-Measurement-Resolution-Accuracy/dp/B078NJR692/ref=sr_1_17?keywords=PH+PEN&qid=1558566815&s=gateway&sr=8-17

I'm not a big spender, and if you some crazy high tech system you can get a the brand BlueLabs - but this what I have used. I dont test PPM solely because TDS meters where I am from are expensive as shit, only PH. But for the 20 bucks, it's worth knowing!

Yeah I did calibrate it, albeit 2 weeks ago or so.

I got 8 vs 6.4 when I tested it today, going to try hydro for the first time.

it was this one came with FREE calibration powder.....

scrog is basically hanging a net above your plants and then you use lst methods to weave your growth into the net, it keeps an even canopy so you get better use of available light

i would highly recommend a ph pen if you can swing it, i use just a cheapie i got from Amazon

PH Meter, Preciva Digital pH Meter with Large Backlit LCD Screen 0,00-14,00 pH Meas... https://www.amazon.ca/dp/B071XFRLSN/ref=cm_sw_r_sms_c_api_i_XcTDDbA9R8V76

it's that one.

I've never heard of those nutes around my area, but after quick look online shows it has a lot of different components to it, i like simple myself

I'm using this for flower: https://www.neptunesharvest.com/rf191-1.html

it's been pretty nice and easy to use, with one bottle only and all, and my plants have loved it

Give this a try.

Good luck!

I purchase whichever is cheapest on Amazon. They last 1-2 years and are accurate enough for my uses. I'm currently using this one.

This is what I use: https://www.amazon.com/dp/B00132G102/

Get a big bottle of the General Hydroponics pH 7.0 calibration and storage solution. You need to rinse the electrode with clean water after every use and change the storage solution regularly (1-2 weeks), but if you keep up with the maintenance they'll stay accurate and last quite awhile.

Those drops suck IMO, same with the strips. I feel that the nutrient ions somehow interfere with the reaction on the strips, and you get color interference like you said with the drops. A glass electrode pH meter is what you want.

Proper pH is fundamental to the plant thriving just like light, temperature, humidity, etc. because it's so closely tied to root health and nutrient absorption. It's worth paying close attention to.

I have tried a half dozen or so, we like the HM Digital one. Use it 4-5x daily going back several years.

That's over $136 here :( http://www.amazon.ca/gp/aw/d/B00132G102/ref=mp_s_a_1_13?qid=1453661143&sr=8-13&pi=AC_SX236_SY340_FMwebp_QL65&keywords=ph+meter

Nope, they aren't cheap. a good PH meter is calibrated laboratory equipment, and should be thought of as such.

I had bad luck with the meters in the $50 range and stepped into a Hanna unit. Hanna is a name brand in scientific instruments. I've been using it for close to a year and I couldnt be more satisfied. I use it daily and typically go 2 months on a calibration - even then its typically still within +/- 0.05 even after 2 months.

If you're serious about it and want a meter that'll last a lifetime (the measurement membrane is replaceable), I recommend this one:

http://www.amazon.com/dp/B002ZG8L58

Got this bad boy for that very reason. Waterproof, so I can be extra careless and dunk my whole arm in and still read it. Splash it, drop it in, fuhgetaboutit.

You can always take a sample from a deeper part of the res, you know.

https://www.amazon.ca/Hanna-Instruments-Waterproof-Conductivity-Tester/dp/B002ZG8L58
I purchased it new and recalibrated it 8 years ago. Used it for a couple years, then put it in storage. I pulled it out this summer, and was surprised to find that the calibration was still dead on for 4, 7, 11, and TDS. If you cannot figure out your calibration or don't want to purchase the fluids for it, your local headshop will often do it for way less than the cost of the fluids.

Use filtered water...no need for distilled. You'll need some storage solution for your pH meter (which must be used religiously... if the electrode tip dries out, your pen is doneski). You'll need a ppm/tds/ec meter to check nutrient concentration. (or get a pH/ppm combo meter... that particular one I linked is definitely worth the splurge).

Blue lab ppm/Ph is about $600CDN. Worth every penny. New pens are $80 if you break them or let them get dirty. I use 4x of them to reference off one another after proper calibration. Just my info, no experience with other meters. EDIT: WAY LESS MONEY On the zon https://www.amazon.ca/Bluelab-BLU2300E-Combo-Conductivity-Temperature/dp/B003PD2N8Q/ref=asc_df_B003PD2N8Q/?tag=googleshopc0c-20&linkCode=df0&hvadid=292938351042&hvpos=1o2&hvnetw=g&hvrand=12192035815692660765&hvpone=&hvptwo=&hvqmt=&hvdev=t&hvdvcmdl=&hvlocint=&hvlocphy=9001463&hvtargid=pla-309645374056&psc=1

https://smile.amazon.com/Bluelab-716441-Combo-Meter-Germination/dp/B003PD2N8Q/ref=sr_1_2?crid=1X27WXAWQLIVF&keywords=bluelab+ph+meter&qid=1572618587&sprefix=blue+lab+ph%2Caps%2C193&sr=8-2

It tells you once a month that it's time to calibrate it. Calibration is simple and easy.

Edit: Make sure to PH your feed water after the feed is in it not prior. Feeds will change the PH if you ph before adding feed.

https://www.amazon.ca/gp/aw/d/B003PD2N8Q/ref=mp_s_a_1_1?ie=UTF8&qid=1522556221&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=bluelab+combo&dpPl=1&dpID=41cFQNnE0AL&ref=plSrch

Yes, these are expensive. Yes, they need to be maintained and calibrated regularly.

This means spending 5 minutes every week maintaining the probe. I have only lost one probe in 5 years and that was after i smashed it.

As for expensive, this is a piece of gear that will last a long time and will be extremely useful in any level of grow. The first time this saves you from a hot feed or solves a ppm/ec runnoff problem on the spot, you'll be glad you spent the cash.

This is my ph kit. It is well worth the expense.

Oakton ph pen

Storage solution

Calibration solution

problem the cheap ones will drift constantly giving you massive ph lockouts. buy a good one and it lasts forever as long as you take care of it. amazon sells Oakton ph testers for a fair price. http://www.amazon.com/Oakton-EcoTestr-Waterproof-Tester-Range/dp/B004G8PWAU

I guess thats not the path I wanna go than. I was thinking of picking up this meter but I am hesitant.

OK, so you can add any sugary juice that isn't super acidic. If you do want to use a very acidic juice (like lemon or orange) you will need to do something to take it down a notch.

During fermentation, the pH you should shoot for is 3.7 to 4.0, otherwise you risk the yeast activity ending up reduced.

You can either get a pH test kit, but make sure it checks for pH in this range, most pool ones do a different range. Soil or hydro kits should probably be ok.

I bought THIS one and am very happy with it. It was a little more money, but it's not by any stretch expensive.

is this the one you recommend?

http://www.amazon.com/Oakton-EcoTestr-Waterproof-Tester-Range/dp/B004G8PWAU

I have this one and this I have been happy with both also I hear the strips are the way to go if you want the cheapest most reliable

I don't know your level of handiness, but, I can tell you from my own personal experience, these pre made recirculating systems are poorly made and poorly designed. They are essentially 5 gallon buckets with 10" netpots and usually some unknown type/quality plastic tubing. They typically have the tubes too high to properly drain the system for a reservoir change, and, being low quality plastic, are prone to cracking. Also, most of them, at least the ones I have had to replace for friends that foolishly buy these things, don't have adequate drainage solutions, and you have to end up rigging your own drain pump anyway.

For around $150 --PVC, solvent, 5 gallon buckets, a large rubbermade tote for reservoir -- you could make a far superior custom system. Then you just need a $35 aquarium pump, a $25 air pump, and some $5 airstones. Think of all that extra money for lighting and a tent! Hell, you'll have enough to buy CO2 and a RO system (which is highly recommended).

Something else that is mandatory for hydroponics, one of these. I am fairly certain these kits don't come with a quality pH tester.

if you want something simple and insanely well priced when compared to other nutrients then check out dyna-gro.

dynagro foliage pro + pro-tekt and you will be years above most other growers. just focus on your environment which IMHO is the most important thing.

what is good about dynagro is it has everything in it as a base nutrient. with most other products (botanicare, GH, and famously Adv Nutrients) the base leaves out C and MG and micro nutrients.

Protekt is a silica additive that makes the plants noticeably stronger and thicker healthier stems.

If you call dynagro's number you can get a starter kit with a PK booster (used around week 4 and 7 of flower).


If you only want to water once every few days I suggest a hempy bucket https://www.icmag.com/ic/showthread.php?t=98419

You can do a coco hempy bucket too and is very popular as well. if you decide to go that route make sure to grab some botanicare Calmag. So your list would be dynagro foliage pro/dynagro protekt/botanicare calmag.

You will 100% need to buy a PH meter and I strongly advise an EC/PPM meter. These are the ones I use

https://smile.amazon.com/Oakton-EcoTestr-Waterproof-Tester-Range/dp/B004G8PWAU/ref=sr_1_13?ie=UTF8&qid=1479005211&sr=8-13&keywords=ph+meter
https://smile.amazon.com/gp/product/B01FPG89CE/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

In a hempy bucket and coco always PH to 5.5-6.2

If you were to put the plants in your pic in to a 3 gallon hempy bucket with vermiculite and perlite for the first 2-3 weeks you are going to want to water once every 2/3 days until a little bit of water flows out. Then when they get big once per day.

I would strongly, strongly suggest not using CFL's. It would be a better investment to get a 250-600w HPS. they are really cheap on amazon. If you go with 250w you dont want the plants to get bigger then a foot or so before you flip the schedule to 12 hours on and 12 hours off.

150W - LINK - Grow 1-4 small plants

600W - LINK - Grow 4-6 medium plants


Dont spend so much time on nutrients and what type of grow medium and focus mostly on keeping a good enviornment in terms of temp and humidity and fresh air. You also need to consider when you flower the room needs to be 100% dark. Even a tiny pinhole of light coming in can be very bad

If you have ever used the common march 809 pump most brewers use then you would see how much it sucks. The march 809 is a pain in the ass to use because it must be primed, can easily cavitate, and only works in one direction. A peristaltic pump on the other hand can be run forwards and backwards, is self-priming, and is more easy to sterilize by design. They are used pretty often in labs for all kinds of things especially medical.

Pouring things between flasks is fine for the most part. It was just something to consider.

Buy a nice used on one ebay:
http://www.ebay.com/itm/TESTED-Cole-Parmer-L-S-Masterflex-Peristaltic-Pump-7553-00-HELP-ORPHANS-H-/160833661031?pt=BI_Pumps&hash=item25726ee867

Another thing you need:

Aeration equipment

pH meter w/ 4.0 calibration solution

Such as:
http://www.williamsbrewing.com/WILLIAMS-OXYGEN-AERATION-SYSTEM-P699.aspx

and this:
http://www.amazon.com/Oakton-EcoTestr-Waterproof-Tester-Range/dp/B004G8PWAU/ref=sr_1_5?ie=UTF8&qid=1348059104&sr=8-5&keywords=pH+meter

Veg week 2 of clones obtained from my local medical collective. First nutrient feeding at half strength (3tsp/gallon of Fox Farm Big Bloom). LST started on all plants with the GDP starting 2 days later then the others. Did some minimal pruning after the LST settled to get things out of the dirt and clean out some leaves that weren't getting any light. Growth seemed to slow a bit for a few days, might have shocked them a bit from being rough with them, but they are doing great now. Thinking of extending my veg an extra week to compensate, will wait and see if that will even be necessary.

Noticed some small bite marks taken out of a leaf, so I decided not to take any chances and got some AzaMax and gave the girls a good shower at about 0.4% concentration. I will be following that up with a few more applications over the next couple weeks. I'm debating if I want to do a soil drench as well. I also got a gnat sticks that already caught one of the bastards.

Temps with lights on have remained stable around 79F and the RH about 40%. Lights off with fan at 20% temps get to 67F at the lowest and 50% RH at the highest. Also have some new goodies coming from Amazon in the next few days to improve my setup like an Oakton pH2 and rope hangers with metal internal gears instead of those cheapo plastic ones that came with my lights.

 

    Strains

Blue Dream - DJ Short x Santa Cruz Haze. 80% Sativa / 20% Indica. 7-8 week flower cycle

Boy Scout Cookies - Girl Scout Cookies Thin Mint x Pre-98 Bubba Kush. 60% Indica / 40% Sativa. 8 week flower cycle.

Darth Vader Haze - 4-way Black Haze Black Cross. 100% Sativa. 9-10 week flower cycle.

Grand Daddy Purple - Big Bud x Purple Urkle. Indicia Dominant. 8-9 week flower cycle.

 

 

Veg Week 1 Reddit Post - Album

This is the one I bought. I love it, quick and stable readings. I also bought the storage solution but you can store it in tap water (the cap allows you to put some liquid in there)
ninja edit DO NOT let the tip dry out. Keep it wet.

Define cheap.

Oakton pH, and highly reviewed

http://www.amazon.com/gp/product/B004G8PWAU/ref=pd_lpo_sbs_dp_ss_1?pf_rd_p=1944687622&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B007A3PPIW&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1JMB9PEC7CV92AK48GYJ

I got this one.

Works great, though kinda slow to settle. But for the price, hard to beat.

>I've been neglecting to ph my water and so far It hasn't been necessary.

That's the thing with soil grows :) It's a more forgiving medium because it does take longer to make changes. But this can make it really difficult at times in determining what's out of whack.

Liquid/paper pH kits are a good start, but an actual pH meter is really the only way to go. You can find them around $20 on Amazon
Link

If you determine your soil pH we can use that value to find what nutrients may have gotten locked out. A good way to do this is to pH your water before adding it, and then pHing the runoff water that comes out of the bottom of the pot. If you put in 7.0 and it drained out at 6.5, you know your soil pH had to be around a 6.0 to influence that change.

Based on the nute deficiencies showing I'm guessing acidic as well. (P - Ca - Mg will lock out first from acidic soil) Pick up some pH up/down solution and simply be sure to water in the correct range after this. (6.5-7.0) I don't have experience with wood ash, but soil additives typically take a while to break down and release fully. No time! :)

If your pH is severely off you'll want to flush, but your plant doesn't seem that upset yet.

reliable Ph meter from my own experience is the most important thing. I PH test my water everytime, and check runoff every once in awhile. I'm on my first grow as well. CFL. Here's the PH meter I use from amazon that has been great!and cheap. http://www.amazon.com/Milwaukee-Instruments-PH600AQ-Tester-Calibration/dp/B005H78ZI0/ref=sr_1_1?ie=UTF8&qid=1331514593&sr=8-1

I also got that PPM blue meter as well. Good luck!

believe it or not, I find I have much better luck with hydro than I do with soil. I've read in a few places that one should grow in soil because it's easier, good for beginners etc... but I had a hell of a time keeping shit alive in dirt. Idk what it is, but I've had super good luck with my 3 hydro grows to date. This is the first time I'm having bad discoloration, but I think it's important that my next purchase is a good ppm/ph meter. I'm just using one of those shitty milwaukee meters. I don't trust the calibration.

the Bluelabs gear is nice if you have the money.

I bought a simple $15 PH600 on amazon

http://www.amazon.com/Milwaukee-Instruments-PH600AQ-Tester-Calibration/dp/B005H78ZI0/ref=sr_1_1?s=lawn-garden&ie=UTF8&qid=1334068927&sr=1-1

and just as cheap a TDS meter

http://www.amazon.com/HM-Digital-TDS-EZ-Tester-Purity/dp/B002C0A7ZY/ref=sr_1_2?ie=UTF8&qid=1334068952&sr=8-2

both work incredibly well

PH TEST I guess the question for you is how do you test your run off . what steps do you take

Is this the one your talking your talking about? Milwaukee Instruments PH600AQ Ph Tester With 1 Point Manual Calibration https://www.amazon.com/dp/B005H78ZI0/ref=cm_sw_r_cp_apa_i_E2K7AbD8K6068

These are what I use. They work just fine.

pH:

http://www.amazon.com/Milwaukee-Instruments-pH600AQ-Tester-Calibration/dp/B005H78ZI0/ref=sr_1_1?ie=UTF8&qid=1348464821&sr=8-1&keywords=milwaukee+ph+test


TDS/EC:

http://www.amazon.com/HM-Digital-TDS-EZ-Auto-off-Function/dp/B002C0A7ZY/ref=sr_1_6?ie=UTF8&qid=1348464821&sr=8-6&keywords=milwaukee+ph+test

http://www.amazon.com/gp/aw/d/B005H78ZI0 - PH meters are actually fairly accurate and inexpensive...

Probably my most enjoyed tool is my digital PH pens. 1 issue is you have to calibrate them so you will need solution I don't believe comes with this 1. I have both a soil and hydro PH pen from them constantly in use for over a year. You get about 30-50 reads then need to recalibrate. The hydro pen can do your nutes for dirt and hydro, the soil pen allows you to stab into your soil and see in the grow medium.

If you are doing hydro: https://www.amazon.com/Bluelab-pH-Pen-Measuring-Temperature/dp/B005POOJHG

Soil has some used 1s in your range, I paid $180 when I got mine:
https://www.amazon.com/gp/aw/d/B00CJIDFAS/ref=mp_s_a_1_2?ie=UTF8&qid=1484082345&sr=8-2&pi=AC_SX236_SY340_FMwebp_QL65&keywords=blue+lab+soil+ph&dpPl=1&dpID=314dYy7eMKL&ref=plSrch

No problemo!

This is a moderately pricey pen, but it's fantastic, I've owned two of them (one dried up because I forgot to add water to the cap(need to keep the sensor thing wet)). https://www.amazon.com/Bluelab-PENPH-Pen-Plant-Germination/dp/B005POOJHG/ref=asc_df_B005POOJHG/?tag=hyprod-20&linkCode=df0&hvadid=167118301188&hvpos=1o1&hvnetw=g&hvrand=16523942976628365276&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9033565&hvtargid=pla-311195096389&psc=1

If you can't afford to do that yet (I would recommend it in the future if you're going to grow, it's months and months and months of feeding every couple days, a good pen is a great benefit to your grow) then the Hanna one will work, but it is less reliable for the long run. https://www.saltwateraquarium.com/hi98103-checker-ph-tester-with-0-1-ph-resolution-hanna-instruments/?gclid=Cj0KCQiAw5_fBRCSARIsAGodhk_YcmPTvhggiq3-aAIYcxhWBLPLL8HVepUW0QgXr7QHghSiTX1SOREaAoMyEALw_wcB

Right on - what exact kind of soil are you using?

I've never used strips at all so can't comment on their effectiveness in DWC at all. I've only ever used a PH pen. I use a cheap yellow Chinese one from eBay for about £5 but I would not recommend it, i'm on my second. I'm planning on upgrading to this (this payday actually) as this is a good middle of the road pen.

If you can afford it i've been recommend a Bluelab pen time and time again, but I can't justify that cost just now.

Buy a new one?
https://www.amazon.com/Bluelab-pH-Pen-Plant-Germination/dp/B005POOJHG

spend a lot now and never worry!

I use blue lab ph meters and have never had a problem with it. http://www.amazon.com/Bluelab-pH-Pen-Measuring-Temperature/dp/B005POOJHG/ref=sr_1_1?ie=UTF8&qid=1420673855&sr=8-1&keywords=bluelab+ph+meter

Had mine 3 years now no issues. Dont go cheap.

what IS a quality pH meter? One of my books recommends the bluelab multi reader but they are in the $200 range.
Is this a necessary item? Thanks for the response!

https://www.getbluelab.com/

EDIT: They also have this pen in the $70 range, but the reviews are mixed for whether it is accurate or not. What do most people use, disposable pH strips on the runoff water?
https://www.amazon.com/Bluelab-PENPH-Pen-Plant-Germination/dp/B005POOJHG/

Its as simple as dip a piece of the strip in the water and compare the color it turns to the little chart. (Under white light) its not instant or as dead accurate as a good meter but its still not hard by any means.

This is the meter I've seen recommended most often and the guy at my local "gardening" store recommended: http://www.amazon.com/Bluelab-pH-Pen-Measuring-Temperature/dp/B005POOJHG/ref=sr_1_4?ie=UTF8&qid=1451480751&sr=8-4&keywords=ph+meter+blue

Also, to keep your meter working well, you need to do maintenance. This is that brands starter kit: http://www.amazon.com/Bluelab-Probe-Conductivity-Accurate-CAREKITPHCON/dp/B00GG9C16U/ref=pd_bxgy_86_img_3?ie=UTF8&refRID=1BERVZZ3C2K3GR5MZ856

As long as you don't get lazy and start cutting corners, or experimenting too much before you're ready, you'll see steady improvement.

IMO, stick to the directions and LST for a couple grows until you've got it down to where you really aren't having to look up each step and you aren't making any little mistakes causing the plants stress. Then try some HST like Super Cropping to increase your yield even more.

If you plan on continuing to grow, my best advice is to invest in a good pH meter like this one. and measure the pH of your runoff so you know if your soil pH is drifting and compensate on your next watering by going up or down by .2 or so. Keep it between 6.3 and 6.8. Beware of cheap pH meters, they need to be recalibrated constantly to be even remotely reliable.

Bluelab Ph Pen is one of the best pen style digital Ph meters available. Do a Google search and see what others say. I loved mine when I had it. I had to sell it when I moved.

http://www.amazon.com/gp/aw/d/B005POOJHG?pc_redir=1413174374&robot_redir=1

Thank you, there aren't many post here with people that have used MC so it's great to get some recent info. I will flush them tonight and give them only pHd water for one feeding and then go to 0.75x of MC and a lesser frequency for Recharge. I also decided to finally splurge a little bit on a Bluelabs pH meter and hopefully not have it break on me like the cheap one I first got; it just arrived, actually.

I'm a big fan of this:

https://www.amazon.ca/gp/aw/d/B005POOJHG/ref=mp_s_a_1_2?ie=UTF8&qid=1498767108&sr=8-2&pi=AC_SX236_SY340_FMwebp_QL65&keywords=bluelab+ph+pen&dpPl=1&dpID=41k7gjUUstL&ref=plSrch

I've used one myself for 2 years and it is quick and stable, temperature compensating up to 50C. After using mine for 6 months, the brewery at wich I work bought one too! Bluelab has a good reputation for high quality, durable products and that has been my experience with this pH Pen.

https://www.amazon.co.uk/Wharfedale-9-0-Black/dp/B00A1E94J8/ref=sr_1_23?ie=UTF8&qid=1493860831&sr=8-23&keywords=bookshelf+speaker

with

https://www.amazon.co.uk/Gemtune-SA-50-Amplifier-Adapter-Standard/dp/B00KBIV1WW/ref=sr_1_6?s=electronics&ie=UTF8&qid=1493860892&sr=1-6&keywords=stereo+amplifier

This looks like the cheapest decent new integrated amp or receiver available where you are at. I think that works out to about 150 euros.

http://www.amazon.co.uk/Pioneer--10-K-50W-Stereo-Amplifier/dp/B0082JFKPQ/ref=sr_1_2?ie=UTF8&qid=1459372804&sr=8-2&keywords=stereo+receiver

Here are some inexpensive speakers that should be pretty decent:

http://www.amazon.co.uk/Wharfedale-9-0-Black/dp/B00A1E94J8/ref=sr_1_1?ie=UTF8&qid=1459372974&sr=8-1&keywords=wharfedale+speakers


Phono pre:

http://www.amazon.co.uk/Project-Phono-Turntable-Pre-Amplifier-White/dp/B00KWTK086/ref=sr_1_2?ie=UTF8&qid=1459373098&sr=8-2&keywords=project+mm+phono

You'll need some speaker stands, a roll of copper speaker wire, and some wire strippers to get it all set up properly.

Ah interesting, thanks! I love that he has an 8" sub to go with his 18" 12" mains XD.

I actually have a similar mis-match of speakers though I paid considerably less. Wharfedale Diamond 9s and Bose 201 Series III's, connected to two Yamaha CRX-M170 amps. One was given to me and the other was bought 'faulty' for £50, however the amplifier part works fine. Gale 3090 sub bought second hand for £50. Overall it all sounds pretty good to me, and I'm happy with it :)

I'm thinking of investing into a quality audio setup for my computer. Usually I just buy any old pair of speakers, but they have been lack luster.
The parts I've picked so far are;
Speakers: https://www.amazon.co.uk/dp/B00A1E94J8/ref=wl_it_dp_o_pC_S_img?_encoding=UTF8&colid=DREJUA7DFCR&coliid=I1DE7COFWGHI3X
Amp: https://www.amazon.co.uk/dp/B00KBIV1WW/ref=wl_it_dp_o_pC_nS_img?_encoding=UTF8&colid=DREJUA7DFCR&coliid=I2MD7CS1F3VRTE
Speaker Wire: https://www.amazon.co.uk/dp/B00C5R3OG8/ref=wl_it_dp_o_pC_S_img?_encoding=UTF8&colid=DREJUA7DFCR&coliid=IMB3EN04SQ5JI&psc=1
Also how much cables do I need, from my understanding I need one cable that goes from my computer(with the green jack) that then splits and goes into the red and white port on the amp.
Then I need two further cables from each speaker to the amp? And a power cable of course.
Anything else I'm missing?
Completely new at this, so I have a very basic understanding.

Thank you! Although I've noticed my choices are much more limited here in the UK. People don't really use craiglist, or other cool websites where things are cheap :( The only one is gumtree really or ebay.
Now, these are really cheap options I'm aware, but what do you think?
http://www.amazon.co.uk/Wharfedale-9-0-Black/dp/B00A1E94J8/ref=sr_1_1?ie=UTF8&qid=1450372409&sr=8-1&keywords=Dayton+B652

http://www.amazon.co.uk/JBL-LSR305-Active-Studio-Monitor/dp/B00DUKP37C/ref=sr_1_1?ie=UTF8&qid=1450372355&sr=8-1&keywords=JBL+LSR305+5%22+Active

Recently I found an old Sony MHC-881 Hi-Fi system [MANUAL], the problem is the main section that houses the Radio, CD and Tape player is really just too big and heavy for the space I have.

What interested me was the two SS-H991 3 way speakers:

• 100W
  
  
• 8 Ohm
  
• 40Hz - 20kHz
  
• 0.9 % Distortion
  
• Mag Shield
  
• 17cm diameter Woofer
  
• 5cm diameter Tweeter
  
• 2cm diameter Super Tweeter
  
  There are also a pair of smaller speaker SS-SR991 I probably won't end up using but I think is worth mentioning.
  
  If I was to purchase an SMSL SA50 would it provide enough power to both 100W speakers (and produce a decent and loud enough sound) or would I have to get a stronger receiver, if so what would you guys recommend?
  
  The other option would be just to get myself a pair of WHARFEDALE DIAMOND 9.0's and use the SMSL SA50 with it.
  Thanks
  
  Edit: Formatting

Unfortunately £100 is just around the lower limit of the very-entry level, not really mid-range if we're going to be honest.

The easy solution is M-audio AV-40s. They are 'powered monitors' so the amplifier is inside, all you have to do is feed them signal.

Alternatively, you could go for "passive" bookshelf loudspeakers and an amplifier. The advantage to this route is that you can upgrade the speakers or amp separately (edit: also each individual component is probably at least a bit better than the av40s, and if anything ever fails it can be replaced separately; it's just more flexible overall). There's some extra work involved but it's not difficult..

These Wharfedale 9.0 should be good for the price (the Diamond 9.1 were reviewed by Stereophile and they measure well for the price).

You'll need an amp, speaker wire, and some banana plugs are helpful. Oh, and probably a 3.5mm stereo to 2RCA cable to connect your 3.5mm source(s) to the amp.

How much better are either of these compared to tiny computer speakers like Logitech or Creative etc.? Much better.

http://www.amazon.com/Etekcity-PH-009-Quality-Digital-Pocket/dp/B00CH3QZSE/ref=sr_1_3?ie=UTF8&qid=1407463327&sr=8-3&keywords=ph+meter

cheap and does the job

Could I recomend a ph probe? They are not the best when cheap like this. But will be easy, quick and readable.

http://www.amazon.com/dp/B00CH3QZSE/

Works okay by all accounts.

Those are super expensive because they have to clean it enough to be breathed directly. If you have the ability to vent outside you can use cheaper filters to remove the worst of the smoke and the reminants become a non issue. I do that with an inline carbon filter

Dr.meter PH001 Backlit pH Meter 0.01 High Accuracy Pocket Size pH Tester with ATC 0-14 Measurement Range https://www.amazon.com/dp/B00LNSEZH2/ref=cm_sw_r_cp_api_vIBTybWWVN35T. Have used this for 3 years and have never had a problem. No sense in spending extra $$ for a name brand.

http://www.amazon.com/Automatic-Temperature-Compensation-Measurement-Resolution/dp/B00LNSEZH2/ref=sr_1_6?ie=UTF8&qid=1418193182&sr=8-6&keywords=ph+meter or something similar with good reviews

Thanks. Would you consider this a decent pH meter?

https://smile.amazon.com/gp/product/B00LNSEZH2

If not, any suggestions?

http://www.amazon.com/Tester-PH-009-Digital-Meter-Calibration/dp/B00N7432II?ie=UTF8&keywords=Ph%20pen&qid=1463251803&ref_=sr_1_1&sr=8-1

Here's a inexpensive one that comes with some testing solution. Make sure to keep the probe calibrated because they are sensitive.

the only advice i can offer is that this ph pen is very reliable and only $13 lol. im interested to see what others say because my friends plants has exactly the same issue
https://www.amazon.com/Tester-PH-009-Digital-Meter-Calibration/dp/B00N7432II/ref=sr_1_1?ie=UTF8&qid=1466896770&sr=8-1&keywords=ph+pen

You could buy a small pack for like $3.00 that would possibly last you the rest of your life. I understand you don’t want to be wasteful, but you don’t nneeed to use them very often - probably only a couple strips every year to double-check the readings of one of these -

Digital PH Meter PH-009 Pocket Size Water Quality pH Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools - Extra Two Packs of PH Calibration Solution Mixture https://www.amazon.com/dp/B00N7432II/ref=cm_sw_r_cp_tai_GBYSAbC90CFC3

Dude, just grab this. Trust me on this one.

edit: Is that Grizzly Adams on your test kit?

this is the one me and my buddy bought. Instructions that came with it were basically junk... Very poor English.

There are quite a few of these meters on Amazon that look similar and having decent reviews (including people that use them for making beer). I'm not sure if they're all the same or what...

I treat it like any other pH meter: I rinse with distilled water and dry with kimwipes after each use. I put a small piece of sponge in the cap and bought some KCl (pH storage solution) off eBay. I wet the probe and sponge with the kcl before storing it.

http://www.amazon.com/gp/product/B00N7432II?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00 Just bought a cheap one to make sure I wasn't above 6. I'll probably upgrade later but for now this was just for piece of mind.

I use this one it's supposed to be ±0.02 accuracy, and I am using it with the proper calibration buffers (I used to work in a testing lab, so I'm familiar enough with the maintenance)

So, idk. I'm going to try a different bacteria next attempt and hope for better results.

I bought a digital meter and it works great and will save quite a bit, PH PEN hope it helps good luck op and stay strong friend:)

Dr.meter PH100-V 0.01 Resolution High Accuracy Pocket Size pH Meter with ATC, 0-14pH Measurement Range https://www.amazon.com/dp/B00ST3VTQ4/ref=cm_sw_r_cp_apa_i_Rb9CDbZVWF4D7 here's the one I bought.

Anyone know what the pH meter in one of the photos is? I've been looking at this one but am hoping to find any reasonably priced option.

On an relrated note, does anyone know of a decent all grain Mosaic Belgian IPA recipe?

E: Hyperlink formatting

I have this one - https://www.amazon.ca/Digital-Dr-meter-Resolution-Accuracy-Measurement/dp/B00ST3VTQ4/ref=sr_1_2_sspa?keywords=dr+meter&qid=1558368922&s=gateway&sr=8-2-spons&psc=1

​

I'm using distilled water (sanity checked it pH) and if I take soil and mix it up in the water it's 6.5. I'll try some more samples. Thanks for the direction! Is it salvageable?

I would hope it works well. Double the price of the one I have which works great:

https://www.amazon.com/Dr-meter-PH100-V-Resolution-Accuracy-Measurement/dp/B00ST3VTQ4/ref=sr_1_5?keywords=ph+meter&qid=1549900925&s=industrial&sr=1-5

Been using it for a couple years. works great and easy to calibrate. Get yourself some pH solutions for calibration which i do every grow. Dr.meter PH100-V 0.01 Resolution High Accuracy Pocket Size pH Meter with ATC, 0-14pH Measurement Range https://www.amazon.com/dp/B00ST3VTQ4/ref=cm_sw_r_cp_apa_i_QDJ2Db1TBW961

If you can spend a little extra money I'd go for this one instead of those generic yellow ones, I haven't had any PH issues since I upgraded.

https://smile.amazon.com/gp/product/B00ST3VTQ4/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1

I use this 0.01 accuracy ATC pH meter that's about $40. It needs to be calibrated using 3 solutions (powders to be mixed with DI water included and you can get extras separately), but a better meter needs better calibration. Took me about 30m and it works great. Make sure to use grocery store distilled water or RO.

I invested in an Apera PH Pen https://www.amazon.co.uk/dp/B01ENFOHN8/ref=cm_sw_r_cp_api_i_iPqFDb9NZ885J

It looks like apera makes one that is not as expensive as Oaktons, and has better reviews than both Oakton and blulab. Ever heard of this thing?

Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Complete Kit https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_apa_.RShzb4EVA98F

This is what I replaced my cheap yellow one with, and I couldn’t be any happier with it. It comes with a nice case, batteries, and calibration solution:
Apera Instruments AI209 PH20... https://www.amazon.com/dp/B01ENFOHN8?ref=yo_pop_ma_swf

I just looked into buying one last year. There's not much under 40 that gives two decimal digits with good accuracy. I ended up inheriting this one that is $97. I'm not convinced that 2 digits is necessary for brewing, but I'm very happy with the Hanna.

If you're just getting into water chemistry and are looking to save money, I'd go with something like this. Good luck!

Get this one! Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Complete Kit https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_apa_hxqlzb549NGB6


I use www.fakespot.com for everything I buy on Amazon, this site verifies if reviews are made up or actual people. I love the site. And they say this PH pen is legit

I wanted a scientific grade instrument and found this pen for under 50 bucks and have been using it well over a year now; the only time it lost calibration was when the batteries needed changing. It gives quick readouts and comes with a two point calibration solution system along with a sturdy case with cutouts to hold everything. This is the storage solution I use to maintain the probe.

Apera Instruments AI209 PH20... https://www.amazon.com/dp/B01ENFOHN8?ref=ppx_pop_mob_ap_share

This is a really good Ph pen for around 40 bucks. Better than any of these cheap crappy pens.

In that size tent I'd probably stick with 3 gal. I'm getting ready to do my first autos in a 4'x2' and I'm probably only going to do 2 plants in 5 gal. Because when I did that with photoperiods (vegged 45 days) with lst and scroging my tent was absolutely full. Feel like 3 autos would get too big for the tent. May take a couple of clones in case turns out I have extra room.

You also didn't specify what, I'm assuming soil, but would help with nute recommendation.

Highly suggest getting recharge, even if just a couple cheap sample packs, it helps so much.

Also skip the $10 PH pens. Get PH up and down with the test kit. And get one like this Apera Instruments PH20 or the $80 Blue labs if you want to splurge.

Eeeee.. I have zero experience with kits like that. I use [this one] (https://www.amazon.com/dp/B01ENFOHN8/ref=cm_sw_r_cp_awdb_t1_XV2MDbSQ7ZA6Y) since [the one I bought originally] (https://www.amazon.com/dp/B01N20ZRC5/ref=cm_sw_r_cp_awdb_t1_jX2MDb2AKB2N4) was wildly inaccurate.

I’m on my first grow right now too. Very similar setup the only thing I’d suggest if you have the money right now is a digital PH meter something like this

https://www.amazon.com/Apera-Instruments-Value-Pocket-Tester/dp/B01ENFOHN8/ref=mp_s_a_1_1?keywords=ph20&qid=1555728904&s=gateway&sr=8-1

Don’t be afraid to ask for advice if you run into problems this community is great. Follow your gut too, to an extent. I followed advice early on that was for soil and not coco (letting the coco dry out significantly before irritating again) some people will say this is how you do it, some say don’t, for me personally it was doing harm so I listened to those saying not to let it dry out. So far my plants have been hardier that i figured they’d be!

YOu can pick any ppm meter. That are many solid one.

As for Ph meter. I liked this kit I bought. Extra batteries, lanyard and solution to keep your meter calibrated.

https://www.amazon.com/Apera-Instruments-Value-Pocket-Tester/dp/B01ENFOHN8/ref=sr_1_20?keywords=ph+meter&qid=1555858764&s=gateway&sr=8-20

For the PH meter I am very happy with the Apera and it comes with calibration liquid.

I bought the one you have listed and it wasn’t even useable.
https://www.amazon.com/gp/aw/d/B01ENFOHN8/ref=mp_s_a_1_3?ie=UTF8&qid=1519078771&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=apera+ph+meter&dpPl=1&dpID=31-1THhTjuL&ref=plSrch

Yes the flushing should help. I think the biggest issue with MG is the fact that new growers tend to overwater and such so that would affect the way the nutes are distributed to the plant. For a pH tester I use this . I pH the water before watering and then pH the runoff. I use coco/perlite mix so my pH levels will be diff than the ones you’d need. I also use distilled white vinegar to lower pH if needed instead of the pH test kits.

I bought this one and haven't looked back yet.

https://www.amazon.com/dp/B01ENFOIQE/ref=sspa_dk_detail_0?psc=1&pd_rd_i=B01ENFOIQE&pd_rd_wg=zOFFC&pd_rd_r=M311DYGNK99FC3RAXKX3&pd_rd_w=11nSI

Thanks for your comment on the PH tester, i got this one but for only $36! : )!

https://www.amazon.com/Apera-Instruments-AI311-Replaceable-2-00-16-00/dp/B01ENFOIQE?ref_=bl_dp_s_web_14574843011

https://www.wettesonline.com/products/instruments-ph-ai311-range-ph60-ph-tester--plusmn-001--200-1600-ph-pocket-premium-apera-probe-accuracy-replaceable-waterproof

Weird site, goodness only knows what they’ll mail me.

That's a good question. I bet the larger amount of water in the full volume mash plays a very significant role in pH.

Also, this is the pH meter I got: https://www.amazon.com/Apera-Instruments-Waterproof-Replaceable-2-00-16-00/dp/B01ENFOIQE/ref=sr_1_4?ie=UTF8&qid=1494965834&sr=8-4&keywords=apera%2Bph%2Bmeter&th=1

It's the most affordable one I've found that has +/- 0.01 precision and automatic temperature compensation.

I think I might have the same set or something similar. It is about $80 off of Amazon though I think I got mine cheaper/on sale. [Here's a link] (https://www.amazon.com/dp/B01ENFOIQE/ref=cm_sw_r_cp_apa_i_aQiACb0BWZMW9). Mine works pretty well and holds the calibration decently between days. I usually use mine for hot sauces since a lot of mine were thicker and bold colors which makes pH strips harder to use.

I think we found your problem! These things are inaccurate! You can't have a good PH reading without a nice PH pen. Plus it's your water that you should test not the soil. The soil it's just to check if everything is fine and you can check it with a PH pen too. Water your plant, wait for the runoff, take this runoff and check the PH.

Don't look further and buy a nice PH pen, I have this one, pretty happy with it.

I use the this Apera I bought from amazon.
Have had it for a while and hasn't failed yet. I follow manufacturer instructions on storage. I check the calibration once every couple months and it hasn't needed calibration in about a year now. I bought extra storage solution KCl from amazon as well. https://www.amazon.ca/Apera-Instruments-Waterproof-Replaceable-2-00-16-00/dp/B01ENFOIQE/ref=redir_mobile_desktop?_encoding=UTF8&psc=1&ref_=oh_aui_i_sh_in_o0_img

The pH strips I picked up from my LHBS must've been expired because they didn't react to the wort at all. I've since bought this meter and been happy with it Apera Instruments AI311 PH60 Premium Waterproof pH Pocket Tester, Replaceable Probe, ±0.01 pH Accuracy, -2.00-16.00 pH Range https://www.amazon.com/dp/B01ENFOIQE/ref=cm_sw_r_cp_apa_i_UJK7CbTRZAVJC

This is the PH tester I ended up purchasing. Middle of the road with lots of opportunities to upgrade. Apera Instruments AI311 PH60 Premium Waterproof pH Pocket Tester, Replaceable Probe, ±0.01 pH Accuracy, -2.00-16.00 pH Range https://www.amazon.com/dp/B01ENFOIQE/ref=cm_sw_r_other_apa_i_LIm2DbA22PH0B


Your advice on the soil composition has been super helpful. I just ordered some additional perlite as I learned my mix is very light on non organics for airspace. I didn't even think about this until you posted. I ended up purchasing a 1 gal sprayer with a low pressure sprayer I'll post pics when it arrives. After some reads on other posts, I makes a lot of sense for reach and east of gentle watering (again, I never thought about this!).

Can you tell me a little more about recharge? I'm really unfamiliar. I'm pretty versed on compost teas but is there something to consider more into flower or late stage pre flush that has worked well for you? Again, I'm trying to do an entirely organic grow if possible.

The cheapest I would go from reviews I've read is the Apera Instruments.

https://smile.amazon.com/Apera-Instruments-AI311-Replaceable-2-00-16-00/dp/B01ENFOIQE

You could probably save $10 with this meter, though I haven't read as much about it.

https://smile.amazon.com/Apera-Instruments-AI223-Accuracy-Calibration/dp/B07BDVL66C/

Just started using this this year: https://smile.amazon.com/gp/product/B01ENFOIQE/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
Only 1 batch so not much of a sample size, but it was only .02 off from brunwater, calibrated the morning of brewday.
FWIW, when I was in the market for one, I asked a local craft beverage maker what the minimum I need to spend to get something worth a damn, and he figured at least $80.

Does anyone have experience with this pH meter?

https://www.amazon.com/gp/product/B01ENFOIQE/ref=ask_ql_qh_dp_hza

Seems to have good reviews on Amazon but not much in the way from homebrewers. Looks like a nice unit, just want to make sure no one has had issues.

Has anyone used this ph meter? I'm not looking to spend $200 but my year old $15 meter is starting to lose it.

I ended getting this, https://www.amazon.com/gp/product/B01ENFOIQE/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

Got this last fall and I've been pretty happy with it https://www.amazon.ca/gp/product/B01ENFOIQE/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

I even broke one of the probes (my stupidity, not the fault of the unit) and it was very easy to get a replacement probe by itself

What are you using for a grow medium?

This is my 3rd grow with both Durban Poison and Blue Mystic and they've both been super easy, to be honest. I had some PH issues on my first grow because I over analyzed my meter and fucked with the PH down too much. I also treated the coco like soil and only watered every 4-5 days, AND I used plain PH'd water with just CaliMag added every other watering.

Now I just add 1ml of PH down per gallon every time regardless of what nutrient ratios are, and I water with nutrients every time, every other day. I only check PH every other or every third watering with the test solution, and as long as it's yellow-ish without too much of a green or orange tint I don't worry about it.

Some nutrients will change the color of your water so you wont be able to get an accurate measurement. Spend 15 bucks on a digital pH pen and learn how to take care of it.

I've been using this one for years

Will this do fine?
Water Quality Test Meter Pancellent TDS PH EC Temperature 4 in 1 Set https://www.amazon.com/dp/B06XCMNFVQ/ref=cm_sw_r_cp_apa_qdc9Bb0HB8EZX

Yeah, if you've got an unhealthy plant it could be Wrong nutrient solution pH or wrong nutrient intensity (PPM) or too little/too much light

You can hone in on those issues with those devices. Without them you couldn't know of one or more of those are Messing with you

Then there's Humidity/Temperature (https://goo.gl/images/Lf31JV orange is optimal)

Then your medium could be fucked Up, too dense, Bad components (screws with pH), Salt build up

Or your Nutrient composituon could be messed Up (Missing CalMag, Bad Base nutrients)

Those 3 devices together with a Tempreture/Humidity measuring device (godmode would be a Graph with multiple measurements, those things only cost Like 30$) should Cover most your bases.

pH and PPM: https://www.amazon.com/Water-Quality-Meter-Pancellent-Temperature/dp/B06XCMNFVQ/ref=mp_s_a_1_1?ie=UTF8&qid=1542216012&sr=8-1-spons&pi=AC_SX236_SY340_FMwebp_QL65&keywords=ph+ppm&psc=1

Lux: https://www.amazon.com/URCERI-Handheld-Digital-Temperature-Measurer/dp/B075DC6X25/ref=mp_s_a_1_3?ie=UTF8&qid=1542216067&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=lux+meter&dpPl=1&dpID=41VbfwkdRUL&ref=plSrch

Will these work? [PH/EC Meters](http://Water Quality Test Meter Pancellent TDS PH EC Temperature 4 in 1 Set https://www.amazon.com/dp/B06XCMNFVQ/ref=cm_sw_r_cp_apa_i_BAg4DbYC6QVCA)

I also have 4 pair of these showing up from Amazon today since they were only thing available when I ordered a few days ago (even the $50 ones were sold out at the time): https://www.amazon.com/gp/product/B06XTL5M5T/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

According to the Q&A they should fit adults too but I can let you know for sure when they arrive here in next couple hours if they actually fit. If you want a pair or two just let me know, offer still stands.

Unfortunately only snagged 2 pair at Frys so don't have any extras of the one size fits all version.


Edit: Yeah these "kids" ones fit just fine.

http://www.amazon.com/Milwaukee-Instruments-PH600AQ-Tester-Calibration/dp/B005H78ZI0/ref=sr_1_cc_2?s=aps&ie=UTF8&qid=1345215012&sr=1-2-catcorr&keywords=aquarium+ph+tester

well then theres 21 bucks and made by a reputable brand. my mistake for assuming hydrofarm would make a decent product, haha.

I've had good results from this one: http://www.smile.amazon.com/gp/product/B00LNSEZH2?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s00

You'll have to calibrate it before using it and clean it after use, but if you do that then it's spot on

Here you go