About 6 months ago my Mom- n- Law gave each one of my kids a red eared slider as a gift. At the time it was warm and we didn't know much about them so we left them in the little takn they game in. About a 1/4 gal I think. Anyway since then one of them has passed do to ignorance but the other is doing well. I have since gotten a 5-10 gal square coral growing tank that is no longer in use and was wondeering what Ineed to do to set it up ffor the little fella. And how do you sex these things and what is their diet? Currently I have the lone one still in the small tank sitting on my kitchen counter with a desk light over it which seems to be doing the trick for a little warmth but what else do I need?