Reddit reviews TetraFauna AquaSafe Water Conditioner for Reptiles & Amphibians 3.38oz (75077009)

I've been in the turtle game for about a year now, recently I've upgraded my 55 gallon canister filter to 150 gallon one called Sunsun HW-304B and wow has it been an improvement. Turtles need 3x the filter so if you have 55 gallon tank you're going to need one rated for 150-200 gallons which canister filters are preferred since they can last a long time without cleaning and provide better suction.

If you do go the canister filter route I would get this media kit that has everything you need to started.

As far as chemicals go I would stick with TetraFauna Aquasafe and API Sludge Destroyer, use only a little bit since that will make your water cloudy if you use too much.

To pick up food waste and whatever else get this long pole fishnet instead of those short ones that they sell at pet stores so you can get in there really deep without shoving your arm in.

Turtles also need 2 types of light UVB and heat, I found that this combo lamp works fine.