During the high-temperature period in summer, the aeration at the entrance of the aquaculture pond is a routine operation. If the pond is anoxic during this period, the dissolved oxygen rate in the water body cannot keep up with it, which will lead to problems such as the deterioration of the bottom material and the floating head of the aquaculture products. For this reason, many aquaculture pond owners use roots blower to match aeration tubes and aeration disks for aeration in most cases.

For the aerator, if it is not operated according to the needs of the pond mouth, the final effect obtained by opening the aerator will be discounted.

So——

Which time point is suitable for starting the oxygen booster?

What kind of oxygenation methods are suitable for Tangkou, and what are their advantages and disadvantages?

It's very necessary to understand.

1、 First, let's talk about the appropriate time points for pond mouth oxygenation:

1. When the weather changes suddenly in a short time;

This kind of situation is common in summer, especially in the coastal area prone to typhoon threat. At this time, the weather will cause relatively strong changes in a short time, which will accelerate the convection of pool water (sunny day, thunderstorm in the evening, rain water entering the fish pond, causing water convection with temperature difference between upper and lower). The oxygen content in the water will decrease rapidly. In this period, it is necessary to turn on Roots fan in time to increase oxygen.

Of course, if there is a rainstorm at night, the oxygen booster should be started in advance in time.

2. Noon of continuous high temperature weather;

In high-temperature weather, it is recommended to open the pond mouth with rich water quality for about 2 hours every day. In this way, when the photosynthesis of plankton in the pond is strongest, Roots fan can drive the aeration disc at the bottom to increase oxygen from the bottom to the surface, so as to ensure that the distribution of dissolved oxygen in the whole pond is uniform and saturated.

3. Late midnight on hot summer days;

In summer, the photosynthesis of the pond is strong during the day. At night, the respiration of the aquaculture and some plankton in the pond will also be strong. Especially in the second half of the night, the oxygen consumption in the water body will reach the maximum, which is easy to cause hypoxia. Therefore, it is recommended to open it in the second half of the night (about 1:00 a.m. - 7:00 a.m.) to ensure that the oxygen supply during respiration in the pond is sufficient.

4. When there is no rain for a long time and no new water is injected;

If there is no rainfall for a long time in summer, the accumulated temperature of the water body will generally be at a relatively high index. In addition to the feed feeding during this period, there will be residual bait and materials at the bottom of the pond. It is easy to form a large oxygen difference between the upper and lower parts of the pond. If there is no choice to change water during this period, it is necessary to regularly start the oxygen increase every day to avoid a large amount of harmful substances produced by the bottom of the pond in an anoxic environment due to the large oxygen difference.

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