Metallic Goldfish come from three gene pools, Blue Belly, Metallic, and Mock Metallic. Here are some of the most common kinds of fancy goldfish you can keep in a home aquarium. Goldfish may come with metallic scales or scales in calico colors.Įxtreme coloration would make goldfish easy targets for predators in the wild or in your backyard pond, but they are harmless, interesting adaptations for goldfish kept in captivity. There are goldfish that not only sport dazzling colors but also interesting domed or dented (convex) scales. You can now find matte (non-reflective) black, blue, speckled orange, silver, and chocolate brown goldfish. Most of the goldfish you can find ready for sale in pet shops aren’t golden, or any color close to golden. There are so many colors of goldfish that the term “goldfish” has become misleading. They can injure the gentler, slower bespectacled, fancy-finned, and egg-shaped varieties of goldfish we will discuss a little later in this article. Slim-bodied Common Goldfish and Comet Goldfish are fast swimmers with aggressive features. While Common Goldfish and Comet Goldfish make good neighbors, most goldfish with unusual anatomical features need to be kept in their own tank. However, they don’t make good neighbors for other kinds of goldfish that stay small. They can survive cooler temperatures and poor water quality, while still growing up to a foot (30 cm) long. Protected from cats and birds, both kinds of goldfish do well in outdoor ponds. Their caudal (tail) fin, however, is deeply forked and maybe almost as long as the Comet Goldfish’s entire body.Ĭomet Goldfish are friendly tank mates with Common Goldfish. Like Common Goldfish, Comet Goldfish come in many colors.

Goldfish aquarium fish