1. The feed should be fed and prepared immediately In winter, dry pelleted feed that has been sun-dried for several days cannot be fed. Dry pellets generally float on the water for a long time, and fish will naturally show their heads to grab food. The newly produced pellet feed contains more water, and it settles quickly when sprinkled into the water, and the fish feeds in the water, thereby reducing the chance of being exposed to frostbite. 2. Removing the powder in the pellet feed When feeding the fish, there should be no powder on the water surface to prevent the fish from being frostbitten due to the floating head eating the powder. Usually, the pellet feed is sieved with 20-mesh silk yarn before feeding the fish. 3. Adjust the fish feeding time Pets Xiaobian said that since the beginning of winter, the first fish feeding time every day has been changed from 8:00 am to 10:00 am. Because the air temperature is low at 8:00 in the morning, the difference between water temperature and air temperature is large; at 10:00 in the morning, the temperature gradually rises, and the difference between water temperature and air temperature is relatively small. At this time, the fish is fed, which reduces the impact of low temperature on the fish to a certain extent. . Fourth, adjust the water temperature Make the water temperature in the range suitable for the growth of tropical fish. In winter, the water temperature can be adjusted to about 20 ℃ to reduce the difference between water temperature and air temperature, and relatively reduce freezing hazards.