If there are too many aquatic plants in the fish pond, will it also cause the fish to lack oxygen?

In summer, the aquatic plants have grown very luxuriantly, covering the water surface tightly At night, they cannot be photosynthetically used, and they have to absorb oxygen from the water, causing the fish to lack oxygen. The fish, shrimp and aquatic animals in the aquatic weeds swim to the bare water surface to eat, and they still swim on the bare water surface in the early morning, so they fish early in the summer and fish the surface of the water and the outer edge of the aquatic weeds. As the sun rises, the surface water and shallow water gradually become hot, and the aquatic plants carry out photosynthesis, and the water is not only shady, but also rich in oxygen, and carp, crucian carp, and even catfish and mandarin fish that are afraid of light, all return to the aquatic weeds.

At this time, the effect is good But soft-shelled turtles and bream seem to be not afraid of heat, and the hotter they are, the greater the amount of food and the greater the amount of activity They are also rushing to eat insects and grass and vegetable leaves blowing from the land in the wind on the bare water surface Around noon in summer, if the angler is not afraid of the heat, use the floating fishing and hanging fishing method to load vegetables on the hook", grass, reed tender cores, ants, etc., and cast fishing with the wind, the hook rate of grass carp and bats is amazing, of course, the struggle after eating the hook is also amazing There are also grass carp and bream into the grass, However, most of them are in the sparse water peanuts, water hyacinths, and water floating lotus, and they are not willing to enter the dense black and sunny bottom of the aquatic weeds. To catch herring, you need to use screw meat and fly meat to throw it into deep water far away.

Hypoxia can occur at night. Not during the day. Because of photosynthesis. During the day, aquatic plants inhale carbon dioxide to release oxygen, and at night inhale oxygen to release carbon dioxide.

Controlling oxygen is a very important thing in the case of feeding fish, because if you are not careful, it may lead to the death of a large number of fish. So why does the lack of oxygen occur? What causes hypoxia? Let's share it with you

The high temperature will actually cause the pond to be hypoxic, and the oxygen in the gas is not very easy to melt into the water when the temperature is high, and the fish will increase the consumption of oxygen due to the continuous high temperature. At this moment, on the one hand, it is best to increase the water level of the pond, on the other hand, you can choose an aeration pump, and then accelerate the working frequency of the fish tank water change, so that the continuous water purification can increase the oxygen content of the pond, so that the security is higher.

The relative density of breeding is one of the causes of hypoxia, some farmers will be too much pursuit of the perfect relative density of breeding, and to maximize the profit of the economic benefits of breeding, so that the total number of breeding is up, but the oxygen consumption has also gone up, and the original enough oxygen is of course not enough. In addition, if the relative density is too large, the fish will be very active for a long time, and the oxygen consumption of a single fish will also increase, so manipulating the relative density is a very central thing.

There are many chemicals in the sludge in the pond that can be oxidized by air, and the oxygen concentration consumed is larger than that of fish. If you look at some fishing ponds, you will find that the bottom of the ponds that often need to be oxygenated is generally stronger. Many people think that sludge treatment is only to better eliminate pathogenic bacteria in the pool, but in fact it is also to better reduce the oxygen consumption in the water.

The longer a pond is not managed, the more microorganisms will be, but do not underestimate this microorganism, they need extremely high oxygen, which can harm the oxygen concentration value of the pond to a greater extent. Timely sterilization of ponds and water changes in fish tanks also have the meaning of removing microorganisms, which are likely to snuggle fish. It is best to change the water regularly and sterilize the fish pond on a daily basis, which can significantly reduce the hypoxia of the fish pond.

The first reason is that the light level of the fish pond is too strong, which leads to algal plant outbreaks; The second primordial feeding amount is too large for the fish to eat, resulting in the growth of microorganisms in the water body and the consumption of oxygen. The third reason is the collapse of ecosystems in water bodies.

If the temperature is too high, it will rain, the water will be polluted, the fish will be too dense, and if there are too few aquatic weeds, it will lead to a lack of oxygen in the fish pond.

Fish deaths on rainy days are mainly caused by lack of oxygen, followed by temperature change. Rainy weather will lead to a lack of oxygen in the pond, and the aerator should be turned on at this time. Secondly, rainy days tend to cool down, and if it rains, the temperature changes even more, and the fish may die if they can't adapt to the change in water temperature.

The air pressure is too low, the photosynthesis of algae is poor, the oxygen production is lower than the oxygen consumption, the rain cools the surface water temperature at the bottom, the bottom water temperature is high, the water body is convection, and the bottom is bait feces.

Flip up. Oxygen consumption.

If there are more aquatic weeds, the fish will be hypoxic, because the amount of aquatic weeds needed in a certain area is certain, and there are more and more aquatic weeds, and the phenomenon of oxygen competition will definitely occur. Because, indeed, aquatic plants photosynthesize and produce oxygen when there is light, and at the same time, respiration consumes oxygen and excretes carbon dioxide, and the amount of oxygen produced is greater than the consumption. But at night, when there is no light, the aquatic plants are only left with respiration, and only oxygen is consumed and carbon dioxide is discharged.

The more aquatic weeds there are, the more oxygen is produced, because the water capacity of the fish tank is fixed, the amount of dissolved oxygen is fixed, and the amount of dissolved oxygen is determined, and there is so much oxygen that can be produced during the day. The more aquatic weeds, the more they consume at night, of course, the fish will be hypoxic, it is recommended to fish up a little aquatic weeds.

1. The temperature is high. High temperature will actually lead to a lack of oxygen in the pond, the temperature is high, the oxygen in the air celery shed is not easy to integrate into the water, and the fish will increase oxygen consumption because of the high temperature, this high and low, the pond will naturally lack oxygen. At this time, on the one hand, it is best to deepen the water depth of the pond, on the other hand, you can use an aeration machine, and then speed up the frequency of water change, so that a steady stream of living water can increase the oxygen content of the pond, so that the guarantee is higher.

2. High breeding density. Breeding density is also one of the causes of hypoxia, some farmers will pursue the breeding density excessively, in order to maximize the benefits of the breeding book, so that the number of breeding is up, but the oxygen consumption has also gone up, and the oxygen that can be used is naturally insufficient. In addition, if the density is too high, the fish will be more active for a long time, and the oxygen consumption of a single fish will also increase, so controlling the density is also a key thing.

3. The silt at the bottom of the pond is too deep. There are a lot of oxidizing substances in the silt of the pond, which consumes more oxygen than fish, and the more silt and more oxygen consumed, the less fish can use, and finally the fish are hypoxic. If you look at some fishponds, you will find that the silt at the bottom of the rising part of the fishpond that often needs to be aerated is generally thicker.

Many people think that dredging is only to remove germs from the bottom of the pond, but in fact it is also to reduce the oxygen consumption in the water.

4. Microbial multiplication. The longer a pond is left unmanaged, the more microorganisms there are, and these microorganisms should not be underestimated, as their oxygen requirements are also extremely high, which can greatly affect the oxygen concentration of the pond. Regular sterilization and water changes in the pond also mean to clean up microorganisms, which are highly likely to infect the fish.

It is best to change the water regularly and sterilize the fish pond on a daily basis, which can significantly reduce the lack of oxygen in the fish pond.