Crucian Carp is a freshwater fish that belongs to the family Cyprinidae. It has a round body and is usually bronze or reddish-brown in color. There are several synonyms for the word Crucian Carp, such as Carassius auratus, Golden Carp, and Goldfish. The Crucian Carp is also sometimes referred to as the Prussian Carp, as it is believed to have originated in the region of Prussia. Despite its name, the Crucian Carp is not actually a type of carp, but is instead closely related to the Goldfish. The species is known for its hardiness and adaptability, making it a popular choice among aquarists.