It is possible for koi sleep sickness to heal itself, but the possibility is relatively low. Sleep sickness is a common disease. There are many reasons for the disease, which are mainly related to environmental changes. It may also be that the usual feeding is not good enough, which leads to insufficient nutrition of fish. In the daily feeding process, after finding that the fish is sick, it needs to be treated in time. Some high-protein foods can be supplemented, and it can also be soaked in salt bath.

1. Reduce net pulling: To prevent sleep sickness, we must first reduce net pulling. In fish ponds, pulling nets is a common operation, but it will cause stress reaction of fish, resulting in a large number of deaths, especially in incubation period where this disease occurs. Therefore, it is necessary to reduce the operation of pulling the net, and at the same time, after pulling the net, it should be disinfected with povidone iodine.

2. Control disinfection: Disinfection of koi fish will cause certain stimulation and stress reaction, thus causing sleep sickness. Therefore, in the daily feeding process, as long as the fish do not show discomfort, do not disinfect easily. If it is overwintering, chlorine dioxide can be used to control the number of harmful bacteria.

3, a small amount of water change: Frequent water change is also the main cause of sleep sickness. In the daily feeding process, the water change cycle should not be too short, and it is usually advisable to change it once every five to seven days. If the fish tank is small or the feeding density is too high, the water quality is not easy to maintain, so it can be shortened to three days, but the amount of water to be changed should be reduced.