Are there any really stunning brightly colored cichlids from the rio Tapajos area that can go with three spotted earth eaters, Heros Notatus Severums, chocolate cichlids, a two spot pike cichlid? I recently learned about this one cichlid called Cichlasoma dimerus that looks outstanding, but it's from uraguay. Does this fish have any close relatives from the rio Tapajos region in SA that get a good size.