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How do Koi breed and how old can they breed

Before breeding, parent fish should be selected. The ratio of female to male can be 1:2 or 1:3. Then they are put together alone during the breeding season and let them inseminate naturally. When the male fish has been chasing the female, it means that the female is about to give birth. Prepare the fish nest for the female to give birth. After production, take out the fish nest in time, disinfect it, and then transfer it to the incubator for incubation. Take good care of the hatched fish. 1、 How to breed Koi 1. Parent fish selection: as a parent fish for breeding, it should at least meet the following requirements: first, it is strong and healthy, and second, it is brightly colored, with smooth, neat and flawless scales. Moreover, in order to improve the quality of small fish, it is necessary to select Koi with obvious variety characteristics.

2. Natural insemination: when the breeding season comes, the female and male need to be put into the spawning pool together. After insemination, if the male fish has been chasing the female fish, it means that the female fish is about to give birth. At this time, prepare the fish nest and put it into the spawning pool.

3. Spawning: the time for female spawning is usually from about 4 a.m. to 10 a.m. or even close to noon. After laying eggs, in order to prevent them from eating the newly laid eggs, it is necessary to take out the fish nest with eggs in time.

4. Hatching: after the fish nest is taken out, it can be disinfected with salt solution or malachite green solution to avoid water mildew. After disinfection, it needs to be put into the incubator. The water temperature needs to be adjusted to a relatively high level in order to hatch quickly. Generally speaking, if the water temperature is 18 degrees, the incubation takes 4-5 days; If the water temperature is 20-22 degrees, it takes 3-4 days to hatch. After hatching, you need to take good care of the small fish. 2、 How old Koi can reproduce? The age at which female Koi and male Koi can reproduce is different. Generally speaking, if it is a male fish, it can reproduce for more than two years; If it's a female, it takes more than three years. The most suitable age for male Koi to reproduce is 3-6 years, and the most suitable age for female Koi to reproduce is 4-10 years. (JinLiZenMeFanShi,DuoDaKeYiFanShi)