Koi can not be fed from December to February of the following year. As a temperature-changing animal, although Koi does not hibernate, it will enter a semi-dormant state when the temperature is low, thus stopping eating, so there is no need to feed at this time. If it is raised in a family fish tank, if the temperature in the tank is still relatively high, it is still necessary to continue feeding. In addition to feeding, pay attention to cleaning to avoid deterioration of water quality.

1. Feeding: When the temperature is very low, the metabolism of koi will slow down, and their digestive system will slow down or even stop. If you continue to feed too much at this time, the food will remain in their digestive system and will not be digested. When the temperature is below 15 degrees, it is best to reduce the feeding amount, and when the temperature is 12 to 13 degrees, you can stop feeding at intervals.

2. Change water: Don't change water so frequently in winter when the temperature is low. If the water is not dirty, don't change water. In order to keep the water filter on, the deterioration of water quality will slow down and fish will grow healthily.

3. Pay attention to the temperature difference: The temperature difference between day and night is large in winter, which can easily lead to the death of koi fish. Fish ponds and outdoor fish tanks cultured in the open air need to be well protected from wind and heat, and the fish tanks can be directly wrapped with plastic plates. If it snows, it is best to cover it with straw curtains at the top to avoid affecting the water temperature after snow falls.