1. Selection of parent fish: As a parent fish for breeding, it should at least meet the following requirements: first, it should be strong and healthy; second, it should be colorful and have smooth, neat and flawless scales. Moreover, in order to make the quality of small fish better, it is necessary to select Koi with obvious species characteristics.
2. Natural insemination: When the breeding season comes, the female and male fish need to be put into the spawning pond together. After insemination, if the male fish has been running after the female fish, then it means that the female fish is about to give birth. At this time, the fish nest should be prepared and placed in the spawning pool.
3. Spawning: The time for female fish to spawn is usually around 4:00 in the morning until 10:00 in the morning or even close to noon. After the female fish lays eggs, in order to prevent them from eating the eggs just laid, the nest with eggs needs to be taken out in time.
4. Hatching: After the fish nest is taken out, it can be disinfected with salt solution or malachite green solution to avoid the occurrence of saprolegniasis. After disinfection, it needs to be put into the hatching tank. 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, it will take 4-5 days to hatch; If the water temperature is 20-22 degrees, it will take 3-4 days to hatch. After hatching, small fish need to be properly cared for.
Female koi and male koi can reproduce at different ages. Generally speaking, if the male fish, more than two years can reproduce; If it is a female, it takes more than three years. The most suitable age for male koi breeding is 3-6 years, and the most suitable age for female koi breeding is 4-10 years.
