Rotten fish will infect other fish. The general cause of its decay is a variety of diseases, such as rotten tail disease, rotten fin disease and so on, these diseases are caused by bacterial infection, the number of fungi in the water increases, other fish will be infected. To avoid this situation, the sick fish need to be fished out separately, and the water in the original tank should be changed regularly to reduce the density of fungi.
1. Change the water: If the fish is rotten, the first thing to do is to change the water. Because all kinds of fungi cause decay, the number of them can be reduced by changing water, avoiding further deterioration of the disease, and it can also play a role in the recovery of fish. It is usually changed every other day, about one fifth of each time.
2. Heating up: In addition to changing the water, what we need to do is to heat up. Raising the temperature is a great way to speed up metabolism and improve the resistance of fish. Generally, it is OK to raise 1-2 degrees Celsius. However, warming also has some drawbacks, bacteria in water tend to accelerate the rate of reproduction after the temperature rises.
3. Adding salt: In order to avoid a large number of bacteria multiplying after the temperature rises, which may worsen the condition of the fish, it is necessary to add salt to the water properly. The purpose of salt is to improve the osmotic pressure of the water body, which can reduce the possibility of bacteria entering the fish body with water. Salinity is usually around three thousandths, too high will affect the survival of fish.
4. Medicated bath: If the condition of the fish is serious, it needs to be treated with sterilization. Common is yellow powder, can also use methyl blue or malachite green, no matter what kind of drugs should pay attention to dosage, excessive also harmful to fish.
