Goldfish

The goldfish (Carassius auratus) is a species of cyprinid and is one of the most popular freshwater aquarium fish. It is native to East Asia, and is a rather small member of the carp family. Several distinct breeds have been described. The breeds may vary in size, body shape, fins, and color. Goldfish may interbreed with other species of Carassius species such as the common carp and koi.