Reddit reviews ABI LED Aquarium Grow Light Bulb, 12W (Royal Blue 450-470nm + Cold White 15000K)

• Yes, but you will need 10-20x tank volume flow per hour. Either oversized filter or additional small powerhead.
  
  
• Yes, no reds, purples or warm white. It should be cold white (10,000-20,000K), and blues 430-460 nm. Spectrum like this or this. There are flat lights or lights that create cone of light.
  
  
• No, if you want to ask for basics and actually do what is recommended. With tri-fold follow up: 1) water changes are a must, this is your baseline water, 2) theory is here, in short do not attempt to change only one parameter from 4 connected (Alk, Can, Mg, pH), 3) nuisance algae, bacteria and protozoans are separate from water parameters matter, more of balance and nutrient export, infestation in some cases.
  
  
• One clownfish that has small adult size, of few nano fish. See LiveAquaria and filter by tank size, care and temperament.
  
  
• Yes, if it is unused filter media. If used, buy a new one.
  
  Links to beginners sources for starting SW tanks are very one sided. Do search for it, browse, compare few of them and you will see.
  
  You will need RO water, TDS meter to monitor its quality; salt water mix; place for mixing SW with vessel, heater and water pump; refractometer or floating glass hydrometer to measure salinity; test kits (ammonia, nitrites, nitrates for cycling and occasional problems, KH, Ca, Mg, high range pH); substrate is optional; instead of driftwood reef rock, live or dry, should be used for aquacaping and in-tank biomedia; watch for the adult size of livestock and if it has restrictions/problems.
  
  Simplest fishless version is here and here. 4 gal is practical limit for full weekly water changes, anything large should use partial water changes.
  
  More expensive, also small, corals only system is here, as an example of the hardware simplicity. You are free to make it as difficult as possible or expensive and automated, if you wish, of course, as in "52 weeks of reefkeeeping".
  
  Your task is to keep tank clean and water parameters stable.
  
  Good luck!

https://www.amazon.com/ABI-Aquarium-Light-10000K-Actinic/dp/B00CXTZN2Q

Check these and similar products out instead.

For a 5 gallon reef all you would need is some live rock from your fowlr, a small 50 watt heater, a small circulation pump like a hydor 240 and a light like this would grow pretty much any coral in a 5 gallon.

What size tank is it? My tank is a 8 gallon and my corals have been doing great with this light that was 20 bucks. https://www.amazon.com/ABI-Aquarium-Light-10000K-Actinic/dp/B00CXTZN2Q

I have this bulb over my 5.5 zoa garden. My zoas are happy and its affordable. Though the bulb is bigger than it looks. http://www.amazon.com/gp/product/B00CXTZN2Q/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

+1 for wavepoint, also try these, they're super cheap so even if you need more than one you'll be saving money http://www.amazon.com/gp/aw/d/B00CXTZN2Q/ref=cm_cr_arp_mb_bdcrb_top?ie=UTF8