I recently purchased a pair of convicts, both around 1in. I'm hoping to breed them and have noticed that they are constantly fighting. is that normal? i know convicts are very aggressive fish, even to each other, but it's just the 2 of them in a 20 gal. i'm pretty sure i have a male and female. one has a pinkish hue to it's body and the other has longer fins. when or will they stop fighting? should i just get another male of female and try again? maybe they don't like each other....any info on this would be greatly appericated.