How big can I expect both species to get? And would a pair be ok in a 6ft 125 gallon tank. I have read they get everything from 12-20". Based on you guys experience could i keep a pair in this size tank with maybe some silver dollar target fish. My plan was to raise a group in a community setting and then remove the tank mates as they pair off(by community setting I mean other aggro cichlids like salvini, convicts, etc). Hopefully this would ensure a stronger pair bond. Or is the tank size too small? I don't want to keep an 18" fish in a 125.