Goldfish
The goldfish ("Carassius auratus") is a freshwater fish in the family Cyprinidae of order Cypriniformes. It is one of the most commonly kept aquarium fish.
Wakin goldfish
The wakin has many popular cultures and beliefs in the history of Japanese goldfish. The wakin goldfish, in Japanese terms, are any 'Huna' bodied goldfish with a single tail (in reference to the popular common goldfish), double tail, or triple tail, while in US, a wakin is simply a double tail goldfish with a long body. Wakins are also popularly seen in red and white, that are prized for competition. Other colors of wakins have made from it, such as chocolate, blue, red, white, orange, and yellow. There is also a calico wakin, but for some reason, the regards to its color process, the calico wakin is not a full-blooded wakin line.