I notice with my 3 Red Bellys that when I feed them there seems to be a line of command and anytime this line is broken there are minor scrapes.I have 2 that are just about the same size and one smaller(the original)one of the bigger ones is the boss but the other one seems to keep trying to prove hisself(so far no bad fights)have any of you guys ever gone through this or is it only because I have 3?