Japanese koi is good. Pick something colorful. Tropical fish is difficult to raise, which requires high temperature and weak adaptability. koi fish has strong adaptability and doesn't pay much attention to water temperature. Its price is cheap relative to its size, but koi fish is generally larger, so you should have a big fish tank. Koi fish is very easy to raise, and laymen can generally keep it for two or three years as long as they remember to feed it.

Koi fish (Cyprinus carpio haematopterus) belongs to Cyprinidae in biology, and CYPRINIDAE is the largest family of all fish species, with more than 1400 species. It is a kind of high-grade ornamental fish that is popular in the world today, and it has the reputation of "living gem in water" and "swimming art". It is praised and loved by people because of its low requirements for water quality, miscellaneous eating habits and easy reproduction.

Brief introduction of information

Koi fish, also known as the original species of Fei koi fish, is the red carp (Cyprinus carpio). Red carp, as an ornamental fish, was very popular in Ming Dynasty. It is said that koi fish originated from koi fish, Longzhou, Guangxi, Xingguo, Jiangxi and Hangzhou, Zhejiang, and was introduced to Japan from China in the early stage. After long-term artificial breeding by the Japanese people, there are now more than 100 varieties. According to the literature, koi fish was first kept by Japanese nobles in the pond for viewing, which was rare for civilians. It was originally called Fei carp, Color carp and Flower carp, and was renamed koi fish after World War II. 1973 As a friendly envoy of the Chinese and Japanese peoples, japanese koi settled down in China. The "carp flag" is also hung in the boys' festival in Japan, which shows the Japanese people's love for koi fish.

Koi fish originated in China, flourished in Japan, and then returned to China, which can be described as a process of "exporting to domestic market". Nowadays, koi fish is loved by more and more people because of its unique masculine beauty, and is even known as the "king of ornamental fish". 　

Koi fish, a kind of high-grade ornamental fish, is popular in the world today. It has the reputation of "a living gem in water" and "a work of art that can swim". Because of its low requirements for water quality, miscellaneous eating habits and easy reproduction, it is welcomed by people.