Yellow Regal Cichlid range extends to three isolated areas in the southwest part of the Malawi lake, i.e. the Maleri islands.
The males of this species grow larger than the females and the color differences are dramatic. Pictured above is a male. The females are olive brown in color. The is a pretty wide range in colors of the males with age also affecting the coloration.
I believe Yellow-Regal-Cichlids are amoung the 'vegetarian' variety but still they are extremely aggressive aquarium fish. They will happily kill, but not eat, anything remotely near its size if it has an estabilished territory.