Comet

The comet is a single-tailed goldfish variety developed in the United States in the late nineteenth century. It shares the long, streamlined body of the common goldfish but carries a longer, deeply forked tail that trails behind an active swimmer. Comets are usually red, orange, white, yellow, or red-and-white sarasa, though dark juveniles and color changes occur. They are often sold as pond fish or large-aquarium goldfish because they grow quickly and retain a more athletic shape than fancy varieties.

Hardy does not mean bowl-sized. Adult comets need substantial swimming space, strong filtration, and oxygen-rich water, especially in warm weather or crowded ponds. They compete well for food and should not be kept with delicate bubble eye, celestial, or other slow fancy goldfish. In outdoor ponds they may overwinter where depth and climate allow, and they spawn readily among plants or spawning mops in spring. Surplus fish should be rehomed responsibly; released goldfish can establish feral populations and damage local waterways.

Colors: Black, Black and Orange, Black and White, Blue-Gray, Brown, Calico, Chocolate, Gold, Lavender, Matte, Metallic, Nacreous, Orange, Panda, Red, Red and White, Red & White, Sarasa (Red & White with Distinct Patterns), White, Yellow