1. will the koi fish heal itself?

It is possible that the koi fish will heal itself. If it is because it has just been bought and is not adapted to the new environment, it can be restored. If it is because of unclean water, lack of oxygen, low water temperature and so on, it can also be self-healing. As long as the external conditions are changed, Koi will rely on its own immunity to recover. But if it is due to disease or bacterial infection, it may be self-healing in the early stage, and it will not be self-healing without timely treatment in the later stage. Whether the koi can heal itself depends on its own resistance. Breeders should maintain suitable water temperature and good water quality to help them heal themselves. If you find that Koi can't heal itself, you should take medicine as soon as possible.

If it is because of environmental discomfort, breeders can try to feed themselves and interact more every day, which can promote the familiarity of Koi with the environment and reduce discomfort. If it is because of low water temperature, poor water quality, lack of oxygen and other problems, you can first raise the water temperature to 25 degrees, then change the water frequently, and finally explode oxygen. When changing water, pay attention to the temperature difference not exceeding 2 degrees, otherwise it will be counterproductive. If it is due to disease or bacterial infection, first of all, raise the water temperature, add coarse salt or yellow powder to increase the dissolved oxygen in the water. You can also take a medicated bath with oxytetracycline once a day for 15 minutes each time.