I painted the bottom of a new 20 gal fowlr tank as suggested but now I am wondering about the back. Which is prefered in general, paint or commercial reef background? I don't want to leave it clear. Thanks
Thats not a bad idea at all stdreb27. I actually have vinyl sheeting on mine (like a skin for a stand or something about 1/4 thick) and it is siliconed around the edges so that no water can get under it. It worked well, although I was not the one that set it up that way so I cannot take the credit LOL.