Koi carp is a relatively common ornamental fish. It has many colors. In addition to the common white, red and black, there are also orange, blue, and so on. Different colors also represent different strains. As a close relative of carp, it is mild in nature, easy to raise, and has a strong ability to adapt to water temperature, and can survive in water of 5-30 C.
Zhaocaiyu is also called a warship, listen to the name to know that it is not small. As a seabass fish, its size can be said to be the best of its kind, and compared with other fish in the family, it is simply a giant. Adults are generally about 20-70 cm, oval body, color gray-brown, very easy to raise.
Map fish originated in South America and was introduced into China in the 1970s. It has beautiful appearance and delicious meat, so it can be used as both ornamental fish and edible fish. This kind of fish generally lives in the middle and lower layers of the water body, and the requirements for water quality are not strict, so it can survive in weak acidic and weak alkaline water.
Parrot fish is not a natural species, but a hybrid of two kinds of fish, so this fish can not reproduce. It usually prefers acidic soft water, and congenital mouth can not be closed, and the control of water flow is weak, so it must be kept in a high dissolved oxygen environment, otherwise it will die because of hypoxia.
