I just purchased a pair of convicts. Unfortunately despite there being 2 obvious breeding pairs in the tank as soon as the net hit the water I had to settle for 2 random fish from the school of 20 or so. They placed the fish in the same bag and I drove home (2 hrs). When I put the fish in my tank the female was missing most of the scales on the rear third of her body and the male is still mecilessly picking on her (I am getting a tank divider as soon as I post this but she may not make it anyway). Is this normal for cons? I thought that as long as one was male and the other female they would pair off, or so I have been led to beleive. What happened here?