How does koi fish breed and overwinter outdoors?

1. Can koi fish spend the winter outdoors in winter?

Koi fish has strong adaptability, and its adaptability to water temperature is also strong. So unless the water temperature is very low in winter, you can spend the winter outdoors. Even if the surface is frozen, they can survive the winter as long as the ice is not too thick. However, some problems should be paid attention to when wintering.

Second, how does koi fish spend the winter outdoors?

1. Feeding: As the temperature decreases, it is necessary to gradually adjust the feeding problem. When the temperature is very low, koi fish's metabolism will slow down and his digestive system will stop slowly. If they are fed too much at this time, they will stay in their digestive system. Therefore, when the temperature is lower than 15 degrees, the feeding amount can be gradually reduced. At 12- 13 degrees, you can stop feeding.

2. Change water: When the temperature is low, it is not necessary to change water so frequently. As long as the water is not dirty, there is no need to change it. In order to maintain the water quality, you can turn on the filter, but you must not change the water too frequently.

3. Temperature difference between day and night: In winter, if the temperature difference between day and night is too large, it will easily lead to koi fish's death. For fish ponds deep underground, there is generally no problem. If it is an open-air fish pond or an outdoor fish tank, it is necessary to do a good job of wind protection, or directly wrap the fish tank with plastic plates.

4. Icing problem: If the water surface freezes, there is generally no need to worry, because the temperature in the depths will be higher. At this point, it is necessary to poke some holes in the ice to let koi fish have some air. However, if the temperature in winter is MINUS ten degrees or even dozens of degrees in very northern areas, it is impossible to breed outdoors.