Whether prevention is greater than treatment or treatment is greater than prevention, prevention is definitely greater than treatment. For example, I used to raise sheep, I was vaccinated as required, and I didn't get sick. As a result, an unpredictable epidemic really came. I have been on Mount Tai, and some of them are too lazy to get vaccinated. The result is terrible, and the difference is too obvious. Therefore, aquaculture should focus on prevention, and lime powder is often used for disinfection to keep the water quality from being polluted and aquaculture from being affected. Even if there are minor problems, it is not difficult to deal with them.