? Koi usually breed from March to May. If the water temperature is suitable, it is possible to breed in autumn. In the process of Koi breeding, we should not only control the external environment such as water temperature, water quality and oxygen, but also ensure sufficient space. In this way, the reproduction and spawning speed of Koi will increase.
koi after breeding 1. Parent fish: Koi need to be fished out as soon as possible after breeding, because the parent fish may eat the eggs as food. When feeding alone, it is necessary to ensure sufficient oxygen and food in the fish tank, and the water temperature should be the same as that of the spawning pond, so as to avoid stress reaction caused by excessive temperature difference. After spawning, the parent fish can reduce the frequency of water change, because the number of water changes will also stimulate the koi.
2. Fish eggs: The hatching temperature of fish eggs should be controlled at about 23 ℃. As long as the water temperature is suitable, they can be hatched in 3-5 days. During the incubation period, breeders need to observe carefully and fish out the unfertilized and moldy eggs in time to avoid polluting the water quality. Newly hatched fish do not need to be fed, but only need to be kept well oxygenated. Small fish are fed 3 days after birth. For the first feeding, you can choose cooked egg yolk or shrimp eggs.
