The goldfish is naturally greenish-brown or gray. The species, howe.... breed goldfish

A deviant fish may be black, spotted, golden, white, or white with silver; it may have a trilobed tail fin or protruding eyes; or it may lack the normally long dorsal fin. Centuries of selecting out and breeding such abnormal specimens have produced over 125 breeds of goldfish, including the common, pet-shop comet; the veiltail, with a three-lobed, flowing tail; the lionhead, with a swollen hood on the head; and the celestial, with protruding, upward-directed eyes. The goldfish is omnivorous, feeding on plants and small animals. Escaping from park and garden pools, the goldfish has become naturalized in many areas of the eastern United States. breed goldfish