? The novice raises the cold water fish to need to prepare the fish tank first. Depending on the type of fish raised, the specifications of the fish tank are also different. Small fish do not require much length and width of the fish tank, while large fish are different. It is necessary to ensure that the fish can turn around and swim inside. Then choose the appropriate feed according to the feeding habits of the fish, which can be fed three times a day, each time in 3-5 minutes. The water should be changed regularly to improve the water condition.
are the common cold-water fish? 1. Goldfish: Goldfish is a common ornamental fish, which has a long history of cultivation in China. It has many species, usually divided into four categories, namely, grass species, Wen species, dragon species and egg species. Among them, grass species is the most primitive goldfish, Wen species and dragon species are the goldfish on the back. The eggs are ornamental goldfish bred in recent years.
2, Koi: Koi is a high-grade ornamental fish, it originated in Japan, not only physical fitness, but also colorful, patterns are also very changeable, with high ornamental value. Its size is very large, so it can only be raised in a slightly larger fish tank, and there are certain requirements for dissolved oxygen in the water body, so it is better to equip the tank with oxygen pumps and other equipment.
3. Medaka: Medaka is a small ornamental fish bred in modern times. Compared with the common small tropical fish, its best advantage is that it does not need to be heated, and its adaptability is very strong. Its body length is about 3-6 centimeters, living in the biological layer of the water body, and its nature is relatively mild.
