Is it OK to sprinkle salt in a frozen fish pond in winter?

Before we can sprinkle this question, let's first understand some of the physical and chemical properties of table salt (the main ingredient NaCl) used in snowmelting:

Solubility. Table salt dissolves easily in water, which is a very common physical phenomenon.

Moisture absorption. The surface of salt is usually surrounded by a thin film of saturated salt solution, when the vapor pressure of this film solution is lower than the partial pressure of water vapor in the air, the salt adsorbs the moisture in the air and deliquescent; On the contrary, when it is higher than the partial pressure of water vapor in the air, it is dry. Of course, this is only a phenomenon that occurs when salt is exposed to the air, and salt that is sealed in a bag and isolated from the surrounding air will not deliquescent;

The freezing point is low. The freezing point I am talking about here does not actually refer to the dissolution point of pure table salt (NaCl) crystals, because it has to be heated to thousands of degrees Celsius to melt without the participation of water, and the freezing point here refers to the freezing point of the salt solution, and experiments have shown that if the salt solution contains 20% salt, its freezing point will be reduced to -16

There are many other properties of table salt, but to explain this problem, there are a few above are almost the same :) In addition, by the way, the composition of snow is mainly solid water - Xiaoice crystals, no matter how low the temperature, ice has the phenomenon of sublimation, so water vapor is diffused around the snow.

When we sprinkle salt on the snow, the salt uses its moisture-absorbing properties to absorb water vapor from the surface of the snow, thus increasing its own strength"tide"The film of the salt solution is becoming more and more obvious, and I think that the solution layer at this time is like a spark"Invasion"Surrounding layers of snow.

If you're raising a freshwater fish, wouldn't sprinkling salt into it make the fish die?

Although salt addition to water bodies has the effects of disinfection and sterilization, auxiliary drugs and fish diseases, it is necessary to know that even if salt is applied strictly according to the amount, there is a certain amount of salt. Salt kills harmful bacteria, but also affects beneficial bacteria, which is easy to make the skin and potato bushes of fish slow down and lose their protective layer, and then be invaded by germs; Yuzheng jujube lives in water with high salt concentration for a long time, which is prone to a certain dependence, thereby reducing the adaptability to water quality changes. As long as the water quality of the fish pond is clean enough, there is no disease, the fish are healthy, and the water quality and temperature are stable, no salt can be added at all.

From a scientific point of view, salt is not needed to prevent and treat fish diseases, and salt cannot replace medicines. Extended Information: Salt plays a role in raising aquariums.

Salt may be used when necessary. But salt should be used sparingly, and care should be taken to moderate it. Salt has the function of balancing osmotic pressure.

The salt inside the fish body penetrates into the water, the fish has to absorb the water, retain the salt, and then discharge the digital model water, at this time, adding a small amount of salt can achieve the balance of salt, eliminating the external penetration of the salt inside the fish body, relieving the spirit and pressure of the fish, which is conducive to the new fish to adapt to the new environment faster and balance the penetration of body fluids; Body fluids seep in and out due to different salinity levels inside and outside the body, so that the salt lost due to damage to the fish can be replaced. Hope mine can help you.

Salt is OK, but the effect of salt is only to inhibit the growth of common bacteria in the early stage, and the effect on infection in the later stage is not obvious. The trimmed and renovated ponds should be disinfected with drugs. Commonly used disinfection drugs include bleaching powder, Qingtangling, quicklime, etc., among which quicklime has the best disinfection effect.

Pond disinfection should be carried out on sunny days, the water depth of the pond should be kept at about 10 cm, and 50 80 kg of water per mu should be sprinkled on the whole pond.

In order to facilitate daily management, conventional fish fry should be pooled. Fingerlings are generally selected for ponding at 8 10 o'clock. Before merging the pond, it is necessary to exercise the fish fingerlings 1 or 2 times, and the net pulling action should be brisk to avoid fish injuries and prevent the fish species from being infected with various body surface infectious diseases after going down the pond.

Under normal circumstances, 23,000 fingerlings with a body length of 10 to 12 cm can be stocked per mu of water surface.

No, except for the fish ponds, bleaching powder or quicklime is generally used to disinfect and prevent fish diseases.

Edible salt can not be used to disinfect fish ponds, just use Xiuba chlorine dioxide disinfectant, in aquaculture can reduce the number of pathogenic microorganisms in the water, without damaging plankton, disinfect the water body, increase oxygen, hemorrhagic sepsis, rotten gills, red skin, enteritis, water mildew in fish.

1. Salt for sterilization and disinfection of fish ponds can first play a role in sterilization and disinfection. Depending on the proportion of salt used, the bacteria and fungi that are destroyed are different, and in addition, it can also eliminate the wheel worm and oblique tube worm on the surface of the fish, thereby preventing the occurrence of some diseases. 2. In addition to preventing fish diseases, fish diseases can also play a leading role, but they are generally used as auxiliary drugs for diseases such as water mildew.

The reason why salt is used is because salt can promote the absorption of drugs on the surface of the fish, so as to better exert the medicinal effect. 3. Increase the osmotic pressure Under normal circumstances, the osmotic pressure of the fish body is higher than that of fresh water, so the water will naturally seep into it, but if salt is added to the fish pond, the osmotic pressure of the water body will increase, which will reduce the burden of kidney drainage of the fish. However, the salinity of the spring hall must be properly controlled, if it exceeds the standard, it will cause water to seep out of the fish's body, making it dehydrated and dying.

Fourth, the salt under the fish pond can also purify the water body, and the salt can increase the concentration of the example in the water, so that the suspended organic particles can condense into flocculent matter and sink to the bottom of the pond, so that the water quality can be maintained, which is beneficial to the health of the fish. At the same time, it also reduces the consumption of oxygen in the water, which allows the fish to breathe better.