1. Slowly raise the temperature of the whole cylinder to 30℃, strengthen filtration, explode oxygen, add big salt, properly change one third of water (fresh water should be aired, and keep the same temperature as fish tank water), and add yellow powder. If the situation is not serious, try not to use drugs and so on. To prevent the disease from getting worse.
2. Raise the temperature and explode oxygen. Methylene blue is a special drug for killing water mold and mildew. It is mixed with salt and baking soda, and it is used for bathing sick fish or cleaning fish tanks. This medicine has a long shelf life.
3. The sick fish should stop eating, rest in isolation for a few days, wash the wound with coarse salt and warm water, depilate it, apply mercuric chloride, and then use oxytetracycline bath. Then put the oxytetracycline powder into the jar and change the water for tonic after 3 days. Generally, taking medicine about twice a week will be effective, and after recovery, it will enter normal management.