Why should the water of crucian carp be salted?

Adding crude salt or special salt to the water can play many roles. It can increase the concentration of ions in the water to make the suspended matter sink to the bottom of the water, purify the water body, balance the osmotic pressure, alleviate the adverse reactions caused by the fish in the new environment, and replenish the wound with salt. Can promote fish skin multi-drug absorption, can effectively prevent and cure fish disease. It can also stimulate appetite, provide an acidic environment for pepsin, denature proteins and help digestion.

Benefits of putting salt in culture ponds

1. Purify the water body. The action mechanism of salt in water is to increase the ion concentration in water, so that the suspended organic particles and colloids become flocs and then sink to the bottom of the pool, which not only reduces the consumption of dissolved oxygen in water, but also achieves the effect of purifying water.

2. Balanced osmotic pressure. The inside and outside of the fish contain different amounts of salt and have a certain osmotic pressure. Adding salt to the water can balance the osmotic pressure, alleviate the adverse reactions caused by the fish when they reach the new water quality environment, and supplement some of the salt lost due to the wound.

3. Adjuvant drug therapy. In the treatment of fish diseases such as water mildew, adding salt to the water can help the fish skin absorb the drugs and enhance the efficacy of the drugs.

4. Disinfection and sterilization. The proportion of salt needed to prevent and cure different fish diseases is different. Salt can eliminate and disinfect all kinds of bacteria, oblique tube worms and rotifers carried on the body surface of fish, so as to achieve the effect of disease prevention.

5. Stimulate appetite. Inorganic salt NaCL is a necessity to maintain life. Sodium ion Na+ plays a very important role in maintaining osmotic pressure, pH and water balance. Na+ can also maintain and improve the excitability of nerves and muscles, and putting salt in water can stimulate the appetite of fish, because CL- is a component of hydrochloric acid in gastric juice, which can activate pepsinogen, provide pepsin with the required acidic environment, and denature the protein in food, which is conducive to digestion.

6. Pay attention to the amount of salt, not too much. You can choose to add crude salt, or salt sold in aquarium stores, but common edible salt cannot be added, because containing iodine, iodine will have an adverse effect on fish.