I have three convicts and had them in a 55 gallon tank w/ 3 jack dempsey's and 3 firemouths. Well, a week and a half later, I had fry from 2 of the convicts, so naturally, they chased everyone off into a corner, so I put just the 2 convicts (and as many fry as I could get) into a 10 gallon tank by themselves and then the male acted as though he wanted to kill the female. After about 2 weeks of "bad living environments" the female couldn't take anymore, so I moved her back to the other tank where she is coming along real nice. The male has just forgotten all about his "babies".