As some of you know the ballast burnt up in my 12 gallon nano. So is lighting really necessary in a qt tank? I can get a new ballast for $20 from the manufactorer but not sure I want to. This really freaked me out cause it was my 7 year old who turned the light on when it happened. I keep thinking what if had got her and do I really want to take that chance again? Can you use any ballast in these things? The tank is near a huge window that gets full sun if I open the shades so I'm thinking of just leaving the lights out. It's just a qt tank that I keep some lr,snails, crabs that I don't want in the main tank. The only reason its still up is just in case something happens to the other tank I can put everything in the backup. I would really appreciate your opinions.