[Ebook] The New Guide to Aquarium Fish – The Goldfish
Kept by man for many, many years, Carassius auratus (the Goldfish) is probably the best known of all aquarium/pond fishes. The wild form of this fish is a dull green to brown animal with little to recommend it as a potential aquarium fish, but a mutation occurred which developed lovely gold patches on the body which eventually turned the whole fish gold.