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①In the high temperature weather in summer, the aerator should be started at noon in order to exert the aeration effect. Since the photosynthesis of plants is the strongest at noon. If the aerator is used to stir, the saturated dissolved oxygen on the surface will be poured into the bottom layer, so that the dissolved oxygen in the upper and lower layers of the water body is uniform, thereby greatly improving the Total dissolved oxygen in the pond.
②When using the impeller type aerator, do not start the aerator in the evening. At that time, the phytoplankton in the water body stopped photosynthesis and could not increase the oxygen in the water body. After the aerator is started, the dissolved oxygen in the upper layer is injected into the lower layer, the dissolved oxygen in the upper layer is not replenished, and the dissolved oxygen in the lower layer is rapidly consumed. As a result, dissolved oxygen in the fish pond as a whole naturally increases and depletes without compensation. The time to use the peroxidizer is to start the peroxidizer 1 hour before or 1 hour after the feed. Because the impeller aerator stirs the water, the water is circulating. The is to increase the oxygen effect; the second is to transmit the taste of the feed to the surrounding areas of the pond, which plays a role in attracting food; the third is to make the fish form a conditioned reflex to eat and play a habitual role.
③ Fish floating heads often appear in fertilizers and pools in summer. At this time, the aerator should not be activated during the day. If the aerator is activated, the oxygen from the upper water body will enter the lower water body, and the fish head will die sooner. Therefore, only when the aerator is turned on between 2 o'clock at night and 8 o'clock in the morning can the fish sink without a floating head.
④ The starting time during the day is: 2 hours before dawn to restore the dissolved oxygen in the pool water to more than 4mg/l; 8 hours and 2 hours in the morning to promote water exchange and continue to increase the dissolved oxygen in the pool water; 3 hours and 2 hours in the afternoon, for the direct demand at night. Oxygen stores large amounts of oxygen.