Fish eyes generally do not die if they have white membrane. This disease, also known as blindfolding, is a common disease, which is usually related to water quality. It is easy to suffer from poor water quality. As long as the water environment is properly improved, fish can recover slowly. However, if the water is not changed in time and the disease is allowed to develop, the fish may die. Therefore, the first time you find that you are sick, you should stop eating in isolation, and at the same time, you should treat it with the old three kinds, or soak it with drugs.

1. Isolation: After fish are found to be sick, they should be isolated first. White membrane is not necessarily contagious, but isolation is safer to be on the safe side, at least to ensure that other fish will not get sick. Moreover, when fish see places with white films, they will also have the habit of pecking, so isolation is also a kind of protection.

2, the old three: This disease can usually be cured by the old three methods. The so-called old three things are changing water, heating up and adding salt. Changing water should be done every other day, so as to improve the water condition as soon as possible. The heating should not exceed 2 ℃ every day, and the salt should not be added too much. The concentration should be controlled below 0.5%.

3. Drug soaking: If the disease worsens, the old three samples alone can no longer achieve the therapeutic effect, so drugs should be used at this time. It can be soaked with yellow powder or oxytetracycline, once a day, with no too much concentration, and the soaking time is about 15 minutes.