Why are African cichlids considered so aggressive as compared to the South American ones? It seems to me that the South Americans get bigger, therfor, wouldn't they be the more likely to kill or hurt another fish? Especially a smaller African that may be picking a fight? I've had 2 blue cobalt cichlids in with a larger jd for about a month now. So far, no problems. The 2 cobalts do scrap quite a bit though. What's the real deal on Africans vs. South Americans?
55g
(2) blue cobalt - 6"
(1) jd - 8"
55g
(2) blue cobalt - 6"
(1) jd - 8"