should outdoor koi pay attention to in winter? 1. Feeding problem: The most important thing to pay attention to when raising outdoor koi is feeding. The amount of feeding should be gradually reduced according to the decrease of temperature. Because the water temperature is low, the koi will reduce their activity, and the body's metabolism will also be reduced, so the amount of feeding should be reduced bit by bit. If the water temperature is below 10 degrees, the feeding can be stopped.
2. The problem of changing water: It is not necessary to change water too frequently when raising koi in winter. When changing water, it is necessary to pay attention to the temperature difference not too large, preferably not more than 3 degrees. But you need to keep the circulation and filtration system on all the time, and if the water is not dirty, you can not change the water.
3. Temperature difference problem: Large temperature difference between day and night can easily lead to disease or death of koi. If it is a fish pond, the koi will hide in deep water, which is generally no problem. If it is an open-air fish tank, it is necessary to do a good job of windproof and heat preservation, and it is better to wrap the whole fish tank with foam board. If the fish pond freezes, several holes need to be opened in the ice to let new air in.
to keep the outdoor koi warm? If it is a fish tank, you need to wrap the fish tank with plastic board or foam board, and cover the top of the fish tank. If it is an outdoor fish pond, the water level can be raised, so that the temperature of the deep water will not be very low, and they will not be frozen.
