Best CA Cichlid to breed in a 75 Gallon Tank?

[MonsterCichlids75]

I need some opinions on what the best central american cichlid would be to have a breeding pair of in a 75 gallon tank with possibly some dither fish. Please, no convicts, bred them quite often over the years. I'm looking for something medium sized, nothing that grows any more than 8 inches so that the male and female can have some decent swimming room and be able to get away from eachother when need be. I'm thinking Salvini's would be really cool, but I've heard lots of stories of the male randomly becomming homicidal or something and killing the female out of nowhere...Firemouths would be cool too as i really enjoy their "puff up" display with their gill covers. Please any and all ideas are welcome, and if someone could shed some light on Salvini breeding and how successful it would be in a 75 gallon. Dempseys are also great but I've heard they can be somewhat difficult to breed? And I'm not sure 75 gallons would be enough for a pair once they are fully grown, correct me if im wrong!