The fish tank needs to change water after adding salt, but not immediately, otherwise the concentration of salt will be reduced, and the efficacy will be discounted. The water is usually changed every two to three days, and it doesn't need to be changed too much, just a quarter. Generally speaking, only when the fish is sick, it is necessary to consider adding salt. The salinity is generally three or five thousandths. If you want to sterilize, do not add salt to the fish tank. Instead, prepare a container and put the fish in it after preparing the salt water.
of adding salt? 1. Supplement nutrition: Adding salt to fish is not to add salt, especially not iodized salt, but to use special coarse salt, which is not processed, so it contains certain trace elements. After pouring it into water, it can also supplement certain nutrition for fish.
2. Change the osmotic pressure: The main purpose of adding salt is to change the osmotic pressure of the water body, because water will automatically enter the high place from the place where the osmotic pressure is low, so by increasing the osmotic pressure of the water body, the entry of water can be reduced, which can not only prevent the bacteria, but also reduce the burden of the fish kidney.
3. Sterilization and disinfection: Adding salt also has certain sterilization effect, but the requirement for concentration is relatively high. Usually to reach about 1%, such a concentration of salt water can not soak fish for a long time, so the fish can only be fished out, put inside for a while, and then put back into the original tank.
