How to raise cold water fish
Cold-water fish is a kind of fish, which has a history of more than 100 million years, which is called "living fossil in water". Among them, many brightly colored fish are farmed for ornamental use. What are the ornamental species of cold water fish? How do you raise it?
What are the ornamental species of cold water fish?
1. Pearl scale goldfish
Pearl scale goldfish is a rare mutation, its scales are hemispherical, if the water cluster box is decorated with rockery stones and other sharp objects, the scales are easy to friction and fall, although it will regenerate, but not as beautiful as the original. At present, the common species are red pearl scale, grass green pearl scale, five-flower pearl scale, crown pearl fish.
two。 Oriental Europe
Oriental Eurasian is originated in Europe, so it is also known as European oysters. It has fast growth, miscellaneous food habits, cold tolerance, salt tolerance, alkali tolerance and hypoxia tolerance, so it is very suitable for the water environment of northern China.
3. Back-watching herring
Guanbei herring is a small freshwater ornamental fish cultivated by artificial breeding, hybridization and purification of wild medaka, with various species and simple feeding and breeding. The smell is omnivorous, mild in nature, fond of group travel and easy to raise.
How to raise cold water fish
The water temperature of cold-water fish should not be higher than 20 degrees, the fish tank (fish pond) had better have temperature control equipment, and the excretion capacity of the fish tank (fish pond) is better. When putting in food, it should be determined according to the size and quantity of fish. If you eat too much fish, it will easily make the water quality worse. In addition, fish tanks (fish ponds) should be cleaned and disinfected regularly.
In addition to ornamental cold-water fish, there are high economic value, such as salmon rainbow trout, elegant fish, pike and so on.
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How to catch carp during the spawning period
Carp spawning period to find a suitable place for fish to spawn fishing, usually in the water plants, or in the shallow water where there are stones. Although the female carp do not eat during the spawning period, the male carp will chase the female carp and eat naturally when they see the food. In this way,
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