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.
Goldfish
Selective breeding over centuries has produced several colour variations, some of them far removed from the "golden" colour of the original fish. There are also different body shapes, fin and eye configurations. Some extreme versions of the goldfish live only in aquariums—they are much less hardy than varieties closer to the "wild" original. However, some variations are hardier, such as the Shubunkin. Currently, there are about 300 breeds recognised in China. The vast majority of goldfish breeds today originated from China. Some of the main varieties are:
Chinese tradition classifies goldfish into four main types. These classifications are not commonly used in the West.