Why did the fish tank start to rub its gills with salt?

I've never heard of adding salt to a fish tank, so why add salt? What kind of fish are raised?

If it looks like a white spot or a disease, you need to heat the water temperature of the fish tank to 31-32 degrees, and then throw a medicine such as white spot, and fast during the dosing period.

The fungus is infected, so it needs to be disinfected.

Panda Fairy.

Salt is a very useful chemical, human life is inseparable from salt, animal life is also inseparable from the role of salt, aquarium fish also have to "eat a little" salt, why is this? What is the role of salt in the life of ornamental fish?

1. The reason for adding salt to water

1.Regulate water osmotic pressure: The purpose of adding salt is to regulate the osmotic pressure of water, reduce the penetration of water into the fish body, reduce the burden on the gills and kidneys, reduce the pressure of the osmotic regulation system, and improve the disease resistance of the fish.

2.Blocking the reproduction of bacteria: adding salt can reduce the negative results of warming, although the temperature can accelerate the reproduction of bacteria, but the osmotic pressure of the water after adding salt is reduced, which can block bacteria from entering the body of the fish to the greatest extent, so the heating and salt are complementary to each other.

3.Inhibition of bacterial osmosis: It is due to the fact that after adding salt, the osmotic pressure inside and outside the biological cell is different, and the water molecules move from the low salinity to the high salinity, resulting in cell dehydration, so as to kill some organisms.

The mechanism of salt sterilization also lies in the reverse osmosis of the bacterial cell membrane by changing the specific gravity of the water, thereby killing the bacteria.

It is not recommended to add salt, because salt water is not conducive to wound healing in freshwater fish, because it will also kill new cells, harmful bacteria, etc. adapt to the higher salinity, and adding salt will have no effect.

2. Precautions for adding salt to water

1.Fish disease**: Only add salt when the fish is sick and need** is the right time. Adding salt every time you change the water will reduce the osmotic regulation ability of the fish, and the effect will be poor when the fish is really sick, so you can't do it usually.

2.Water quality problems: If you don't add salt properly, it will aggravate the disease, and when the water quality problem itself is damaged, your fish will have been harmed. If the water quality is not controlled, salt is added, and the water quality is destroyed again, causing the fish to be attacked again.

3.Do not use seasoned salt: It is best to use coarse salt or aquarium special salt for salt, and do not use flavored salt with additives, such as iodized salt. The salt should be dissolved and coarsely filtered before being added, and the salt concentration should be gradually increased within 1-2 days to avoid osmotic pressure in the fish**.

4.Safe concentration of salt: The concentration of salt must be reached to regulate the osmotic pressure, and this concentration is very safe for most fish. Some fish, such as some soft-water fish and some catfish, are very sensitive to sodium chloride and should be used with caution with salt.

5.Too light does not work: many people dare not add more salt when they are sick, but just sprinkle a few more handfuls of salt than usual, and the salt concentration is too light, which can only slow down the reproduction of bacteria and cannot kill them. Sprinkle a few handfuls of salt and it won't have any bactericidal effect at all.

6.Excessive salt use is harmful: Excessive salt use can cause excessive osmotic pressure, which can further lead to physiological changes in the body's cells, which can lead to a decrease in the fish's resistance to disease. When the salt concentration exceeds 1, even a short period of immersion can cause adverse reactions in fish.

Salt in the fish tank is to play a role in sterilization and disinfection, sometimes the fish have white spots on the body due to inflammation, at this time the appropriate salt will have a good sterilization effect.

When the fish is cooked, it will be more flavorful, which is equivalent to the process of development.

1. If the temperature difference between the water you change and the water in the tank is too large, it will make the fish catch a cold, and it is usually stuck in the corner of the tank and does not like to move. Raise the temperature to 28-30 degrees, then amplify the salt, the effect is clear for 3-5 days, do not feed or feed less, keep the water clean.

2. If you really rub the bottom of the tank, you must be infected with ectoparasites, mercurous nitrate or methyl blue, with the heating rate, the effect is obvious, especially mercurous nitrate for 2-3 days, to kill ectoparasites.

Maybe you feed them from that place a lot, and they are hungry and instinctively go there to eat.

Hehe, my fish are like this, they see someone walking by, they think you go and feed him, just feed him more (not too much).

You can feed it first, if it is not active in eating, it is likely to be sick. Could it be because the fish tank leaked, and your version was replaced.

Right up the water. But not paying enough attention when changing the water again made the map cold. You should know that if you are not careful when changing the water, the fish will catch a cold. If you have a cold, you should feed it carefully, don't underestimate the fish cold, which will kill the fish.

When the fish opens its mouth, water enters from the mouth and comes out again from the gill cover When the fish opens its mouth, the gill cover is closed; When the fish closes its mouth, the gill cover opens.

There is no need to save it, the fish that has been lying down, whether it is injured, sick, or poisoned. Lying down indicates that the nervous system is damaged, which cannot be reversed.