Goldfish symbolizes good luck, and people keep goldfish with this beautiful wish. I hope everything is happy at home. People who pay attention to feng shui will also realize their wishes by choosing the color, quantity and variety of goldfish.
Koi fish originated in Central Asia and later spread to China. In ancient China, court technicians screened out a variety that met the public aesthetic standards according to the method of breeding goldfish and crucian carp. The original species of koi fish was red carp from China (red carp from Jiangxi, China, and golden carp from Hangzhou, Zhejiang), which was very popular as an ornamental fish in the Ming Dynasty. It was introduced to Japan in modern times and carried forward in Japan. Japan has cultivated many excellent varieties, so many koi fish are named after Japan. 1804- 1829, Japanese aristocrats put koi fish in the pond for the first time. At first, it was called flying carp, colored carp and flower carp, but it was changed to koi fish after World War II. Koi fish is named after the bright colors on the surface of fish. Japanese aristocrats think that koi fish has the demeanor of a samurai, and he can be calm and fearless in times of crisis. Therefore, it is known as "national fish", "living gem in water" and "king of ornamental fish" in Japan. Because the requirements for water quality are not high, the food is miscellaneous and easy to breed. Because its longevity means good luck, it is said that it can bring good luck to its owner. It is a well-known feng shui fish and ornamental pet, so it is very popular. At present, it has reached 13 categories 1 19 varieties.
Arowana is a large freshwater fish, which appeared on the earth in the ancient Carboniferous, and began to swim in the fresh water of the earth around the Jurassic, and gradually differentiated from a common ancestor into two species, namely Australian arowana and Asian arowana. Some Japanese scientists believe that Asian arowana was differentiated from its close relative Australian arowana (Pearl arowana) in Cretaceous. Now, it is distributed in all continents except North America. In Asia, mainly distributed in Southeast Asia, there is only one species, namely Asian arowana; There are two kinds in Australia, pearl arowana and star arowana; In Africa, there is another species, namely African arowana; There are also two species in Latin America, namely arowana and black dragon fish.