1. what is the role of salt in the fish tank

When we raise fish, salt is a substance that may be used. They can play a role or more:

1, sterilization: put salt in the water, the most important role is sterilization. They remove some harmful bacteria in the water and can effectively reduce the probability of fish diseases. Salt can also play a role in curing diseases after fish are sick. Through a series of measures such as heating and salt, general diseases can be cured.

2. Regulation of water pressure: Adding a certain amount of salt to the water can also play a role in regulating the water pressure. By adjusting the water pressure, we can adjust the balance of fish itself, that is, the balance between inside and outside the body, which is conducive to the health of fish.

3. Stimulate appetite: Furthermore, putting a certain amount of salt in the fish tank can also stimulate the appetite of fish to a certain extent, so that they can eat more and develop better.

2. what is the reason for the death of the fish after putting salt in the fish tank

As mentioned above, the benefits of putting salt in the fish tank are more. However, some farmers will encounter fish death after salt release. At this time, it may be too much salt. Although salt has more effects, if it is put too much, it will also cause harm to fish, which may cause them to fade, or even cause them to dehydrate or even die. Generally speaking, the concentration control in 0.3%-0.5% is the most appropriate. Moreover, the death of fish after salt may be due to the introduction of edible salt, which contains iodine element harmful to fish, especially in the case of excessive edible salt.