Ventralis in a 55 is hard enough by them selves for any long term. Take them out and keep the other two, maybe add a rock dwelling species or two
Agree to a point,Heyguy74 said:The Callochromis pleurospilus should also be in a 6 ft tank. The males will fight alot. When I had them my dominant male killed a few males and some females in 75G tank. When I movesd tehm to a 6ft 125. The killing ended.