The koi does not need to be heated indoors. The koi has strong cold resistance. As long as the temperature in the fish tank is not lower than 5 degrees, it can be fed normally. If the temperature is lower than 5 degrees, it can stop eating. When feeding, the feed can be soaked in water in advance. Pay special attention to the fact that the temperature in the north will be below 5 degrees, which generally does not grow. If you want the koi to grow, you can heat the koi.
in winter in the north? Koi has strong cold resistance, but the temperature in winter in the north is below zero for a long time. This degree of cold is beyond the endurance of Koi. If you want Koi to keep fat and prevent diseases, you need to pay attention to the feeding method in winter.
1. Water temperature: In the first ten days of November, the water temperature begins to drop suddenly. At this time, the koi should be fed indoors from outdoors. When changing the water for the koi, the water temperature should be controlled at 22 to 25 degrees, which is consistent with the water temperature in the aquarium. There should not be too much fluctuation.
2. Water quality: In winter, the water quality should be adjusted well. Chlorine agents such as chlorine dioxide and bromochlorohydantoin can be used regularly to disinfect the water in the aquarium. Within 5 days after disinfection, microbial agents such as Bacillus can be sprinkled to stabilize the water quality.
3. Cold: In winter, when the temperature is changeable, koi is prone to "cold disease". Koi will show symptoms such as abnormal activity, swimming fatigue or mutual friction. We can sprinkle sea salt water into the aquarium to prevent Koi from catching a cold. We should control the amount of sprinkling.
