Map fish can put sea salt, because sea salt has the function of sterilization and disinfection, and a small amount of addition can kill bacteria in water and body surface, which is also of great help to the growth and health of map fish. However, when map fish are healthy, it is not recommended to add sea salt. Because they are freshwater fish, sea salt is often put in when they are raised at ordinary times, which may affect their health. In addition, they are a kind of fish with solid skin, and their ability to resist diseases is relatively strong, and they rarely get sick, so it is not recommended to put sea salt on them at ordinary times.

Sea salt can be put in if map fish are infected with bacteria or suffer from other diseases. Because sea salt has the function of sterilization and disinfection, and compared with drugs, it has almost no side effects, so many breeders will choose salt treatment when the disease is not serious.

As mentioned above, map fish is freshwater fish, and the amount of salt should not be too much. Under normal circumstances, it is best to keep the concentration of salt between 1% and 3%. If the amount of salt is too large, it will affect their normal life. If the amount of salt is too small, it can't play the role of sterilization, so breeders can decide according to their specific conditions, but the concentration of salt should not exceed 3%.