....like giant Convicts, aren't they?
The females aren't so bad, but the males experience serious mental problems as soon as that hump grows and "starts pushing on their brain" lol....it's like a 2nd brain.....1 is the angel on his shoulder telling him to "chill", and the other 1 is the devil on his other shoulder telling him to "kill".
Amphilophus males are the only fish I could never get to coexist in aggressive community tanks. Just too damn savage, especially to each other. Most of the time you need a perforated divider just to breed them without one getting beat-up or worse.