Common goldfish, comets and shubunkins make excellent outdoor pond fish and are known to survive relatively cold winters. Goldfish should never be kept in bowls, small aquariums or any unfiltered container! In addition to having relatively high oxygen demands, they grow to be quite large and generate a significant amount of waste, which can be harmful if allowed to accumulate. When properly cared for, goldfish can live over 20 years in captivity.
All varieties of goldfish are the same species – Carrassius auratus.
Orandas, lionheads and ranchus develop a crown of fatty tissue, called hood growth, over their heads that in mature fish may completely cover their eyes! Fancy goldfish can become stunningly beautiful and command high prices. They include comets, shubunkins, fantails, orandas, ryukins, moors, telescope eyes, celestial eyes, bubble eyes, butterfly tails, pearlscales, wakins, lionheads, ranchus and many more. Through selective breeding, many “fancy” goldfish strains sporting different body shapes, colors and fin types are available today. Goldfish can be distinguished from koi and common carp by the absence of barbels or “whiskers” in the corners of their mouth. They are not the same, but related to carp, and were first domesticated from food fish in China over 1,000 years ago. Among the most common fish in the aquarium hobby, goldfish belong to the Family Cyprinidae and are native to Eastern Asia.
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