Tiff14RN said:I have 2 dalmation mollies in a 10 gallon tank. The more black molly was there first and he's very aggressive to the other molly (sex?). I put him in time out (a breeding area) for 24 hours. We'll he's still aggressive. I think that it has to do with his sex and nature. When is aggressive too aggressive? I don't want my other Molly to get abused!