i have a ten gallon tank in my room that has 4 mollies in it, a sailfin(male) dalamtion (female , choclate chip(i think im not sure) and a lyre tail(female that just gave birth). as of late, the sailfin who had been timid most of the time has been chasing the lyretail and the chocolate chip, is there anything i can do or should buy to stop him or something, he really is a nice fish and would go well in on other tank so i do not want to seperate him, so waht should i do?