It is most auspicious to keep a few goldfish at home.

A goldfish, prosperous wealth, is conducive to peach blossom luck. Two goldfish, five behaviors are soil and water, which is not conducive to wealth. Three goldfish, five movements, drainage, bad fortune, easy to get into trouble.

China goldfish (Carassiuschinensis, scientific name) is the general name of many kinds of artificially cultured fishes of CYPRINIDAE, CYPRINIDAE and Carassidae. It is an ornamental fish originated in China, and it is a colorful variety evolved from wild crucian carp. Goldfish, also known as "golden crucian carp", is similar to carp (Cyprinuscarpio) but has no mouth whiskers, and evolved from crucian carp. The hometown of goldfish is China, which has a history of 1700 years. It is recorded that when Huan Chong visited Lushan Mountain in Shanxi, he saw a red scale fish in the lake. This kind of red scale fish is the red and yellow golden crucian carp, which is the earliest ancestor of goldfish. Therefore, it can be considered that goldfish was first discovered in China Jin Dynasty.

Goldfish has diuretic, heat-clearing and detoxification effects. Goldfish is a Chinese medicine name, mainly because goldfish belongs to crucian carp. Usually, it can achieve good therapeutic effect on clinical symptoms such as jaundice, edema and dysuria, and can also be used to treat pneumonia and cough.