I have a seperate breeding tank....when they get about an inch I dump em all in with the rhom. These are 2 of the last 5 that have made it for about a month. There is another batch of about 40 a little over half an inch now. I was hesitant about adding 30 inch long fish. But Ive never had such a clean tank. They take care of all leftovers and baby snails and planaria. He mainly only eats them for entertainment I still feed him filets or shrimp every other day. Definetaly makes the boredom of a Rhom tank a bit more bareable. At least there is some activity when he is being antisocial.