I think with sevs it depends on the individual, i has 2 red spot and a red shoulder living together for awhile and the biggest red spot was a jerk, nipping and chasing the other 2 who were faded and stressed. I took him out and the other 2 got on well for several years despite being different variants. And none of the 3 ever messed with anyone else in the tank, though they were the only cichlids.