a year. Koi with normal reproductive capacity can reproduce once a year. Generally, when we want koi to pair and breed, we should choose male fish over two years old and female fish over three years old to pair, because at this time the koi has normal reproductive capacity. If you want to breed a better breed of fry, you need to choose 3-6 years old male fish and 4-10 years old female fish. At this stage, all the organs of Koi carp have matured, and the breed is naturally better.
Generally, the best breeding time for koi carp is around May every year. When pairing, the breeder should carry out polyculture according to the proportion of one female and three males. After spawning, the big fish should be isolated separately to prevent them from eating the eggs by mistake.
big can Koi grow in a year? Generally speaking, the growth rate of Koi before ten years old is relatively fast. Small koi can grow to 10-20 cm in the first year, 25-30 cm in the second year, 70 cm in the tenth year, and 150 cm in the tenth year. The growth rate
of Koi is related to their environment and food. Want to make koi grow fast, it is necessary to give them a constant water temperature, and food should not be too single, to pay attention to nutrition.
