Fish eyes bulging are usually sick. It may be an eye injury that causes bacteria to invade, or it may be caused by poor water quality or other diseases. Usually, there are eye problems, which are mostly related to water. Therefore, it is necessary to change water in time to improve the water environment. Oxytetracycline can be added to the water, which can play a role in sterilization. If the eyes are swollen badly, you can also use erythromycin and other drugs to smear on the eyes for treatment.

1. Change water: To treat fish eyes bulging, the first thing to do is to change water. Although it is necessary to change water during daily feeding, the frequency of changing water is different. Usually, you should not change water too frequently, otherwise it will stimulate fish. At this time, you should change water frequently, improve the water environment as soon as possible, and change it every other day.

2. Temperature rise: In addition to changing water, the water temperature should be appropriately raised. The purpose of heating up is not to sterilize, but to speed up metabolism, which can revitalize fish and discharge harmful substances, which is very helpful for its recovery. It should be noted that the temperature rise should not be too high at one time, and should not exceed 2 ℃ a day.

3. Salt: Since the reproduction speed of bacteria will be accelerated after heating up, it is necessary to add a little salt, which can increase the osmotic pressure of water and reduce the invasion of bacteria. The concentration of salt is usually three to five thousandths. Too much salt will make fish feel uncomfortable and bad for their health.