On my ten gallon, there is a little refugium on the back (only about a gallon). I keep about 20 at a time in there until they get big enough to sell, and the mom has the rest in the tank. At least, that was the original idea. They have just kind of stopped growing. And based off of pictures of other fry and their age, thay should be a lot bigger. I am kind of thinking that it is the small space, but I am not entirely sure, and if it is that, I am worried that they will get stunted...not what I want. I feed them crushed up flake food (omega one) and there is java moss in there as well (the really tiny ones supposedly eat the little micro-organisms). I feed about a half a pinch in the morning and a whole pinch in the evening, sorry that that is a little hard to picture. What could it be??? Thanks in advance.