What happens if you add salt when keeping fish?

Adding salt when keeping fish can adjust the osmotic pressure in the water, enhance the fish’s disease resistance, and help prevent and assist in treating fish diseases. In addition, salt at a certain concentration has a disinfecting effect, inhibiting the reproduction of some bacteria and pathogens and reducing the risk of fish disease.

But note that too high a salt concentration can also harm fish, easily causing symptoms such as excitement and convulsions, and even death in severe cases. At the same time, for freshwater fish, adding salt may cause nervous tension and affect normal growth. Therefore, when using salt, add an appropriate amount based on the specific situation and avoid excess.