Anyone else seen this? My mollies that have been in tank together for quite some time now 3 weeks, have gotten really aggressive. It is just the male black lyretail molly and the male dalmation molly fighting. Tank conditions are perfect, food is good, only thing I can think of is that the male dalmation seemed to stop trying to breed with the female dalmations and was going after female black lyretail, which happened after last time female black gave birth too, but this time the males are fighting to what would be their death i am sure. I moved the dalmation male to another tank for a couple of days, reintroduced him and right back at it. Should I wait a little longer, because i want him back in that tank to breed the lyretail dalmations from now on? thanks all