Hi, i have 6 angles 5 males and 1 female, there is one pair, they were in a 45 for a while where they fought occasionally, and had small conflicts, since i have added to my 75G a few weeks ago they have been fighting intrensely over food and territory, they get into bigger fights and use more brutal attacks then they did before, why is this? it community tank and i thought the other fish would distract them form each other. Does anyone have any advice on this matter? they were my dads who passed away so getting rid of any is out of the question.