How many hectopascals will the water in the fish pond be deprived of oxygen, and an oxygen blower is needed.

The so-called high and low pressure is relative, and it is for the same time period. For example, the air pressure in summer is generally about 99 hectopascals (different from day to day), and it is about 12 hectopascals in winter, with a difference of about 3 hectopascals. Therefore, it cannot be considered that the air pressure in summer is low, so the fish will not bite, and the air pressure in winter is high, so the fish will be easy to fish.

by the same token, we can't think that fish must be easy to catch when the air pressure in Guangzhou is high, and fish must be difficult to catch when the air pressure in Xi' an is relatively low. Fish living in low-pressure areas are accustomed to the natural conditions there and will not feel uncomfortable because of low air pressure, just as people living in high-altitude areas do not feel hypoxia.

Extended information

In fact, there are only two ways to increase oxygen, one is to increase the water flow from the water pump into the water surface of the fish tank, and the other is to use a simple oxygen pump and equipment that can be connected with the oxygen pump to increase oxygen, such as water goblins, sand heads, gas disks, anti-gas lifts, etc.

Under normal circumstances, if our feeding density is reasonable, it is impossible to lack oxygen in the fish tank, so much water flows down the river step by step.

If it is an ordinary upper filter box, we need to pay attention to the distance between the water flowing into the fish tank and the water surface of the fish tank, preferably about 1 cm.

that is to say, we need to rely on the water flowing down to the surface of the fish tank to aerate the fish tank. If we see that the ornamental fish in the fish tank are still lacking oxygen, we can increase the power of the water pump or reduce the height of the water body to make the water flow bigger, so as to achieve the purpose of aerating the fish tank.