Once quite common in the aquarium trade, the cichlid “Cichlasoma” beani is now one of the rarest, most desirable, and hardest-to-obtain cichlids on the casual cichlidophile’s wish list. It is known as the Sonoran cichlid and the green guapote, and by the Spanish forms mojarra de Sinaloa and mojarra verde. For many years, and until fairly recently, it was very easy to get a hold of specimens of this fish. In fact, swimming wild in southern California was a small but reproductively active population, but it is now thought to be entirely extirpated. Several zoos and other institutions that either displayed the species or did research on it had many adults that actively reproduced. Often the fish reproduced with such success that the keepers were faced with hundreds, if not thousands, of fry to contend with.