Hi...I have a 55 gal live plant tank. Had 3 regular type mollies, all white, no long fins, one male and two female. I bought 4 lyrtail sailfin mollies, 3 white and one a dalmation. Whew is there some fighting going on. The dalmation is a bully seems like, and one of the originals which was always a sweety has his little bit of fins up and they jump at each other. Another one is getting involved also. I have 1 platinum gourami, 2 opal gouramis and some rummy noses. Wondering if I have two many mollies, and need to remove some. The lyretail are showing me that they are a little aggressive. Is there something not right with my water. I had it checked today, and it is in complete balance? Please give me any recommendations, as I have been focusing on mollies and don't know a lot. Need guidance. thanks