1. Infuse new water. Timely infusion of new oxygen-rich water into the pond, the water inlet to be paved or dry wood, so that the water slowly but surely, do not let the water into the bottom of the pond turned floating mud. At the other end of the pot, some of the old water is drained. When watering, it is best to place sprinklers on the outlet pipe so that the water will fall into the pond in rainy conditions. The small still water pond can be pumped into the pond by an air pump through a hose. A sander is attached to the top of the hose or many small holes are drilled in the hose to allow the air to become small bubbles to diffuse into the water and expand the contact surface between air and water to increase the water. Oxygen content. 2, circulating water oxygen. In the absence of water, the use of water pumps and other tools to extract the bottom of the pond with low oxygen content of water, in the air after a certain period of exposure still flows back to the original pool, in order to increase the total dissolved oxygen in the pond. 3, using two Fish ponds to aerate the way to increase oxygen. That is to say, pumping water from the pool A into the pool B will open a small gap in the pond. When the water level in the pool B is higher than the pool, the water will flow into the pool automatically. This way, both fish ponds can increase the oxygen in the living water, and the operation is convenient. The effect is also good. 4. When a fish abdomen is found to be upward, it can be concentrated at the inlet and some fish can be saved. Fish that have died should be removed in time. 5, medication. With '991' compound oxygenating agent, the application amount (kg) is the weight of the fish on the pond (kilograms) 0.01, and ponds with high organic load in the pond can increase the dose as appropriate. With fish floating in the sea, when the fish is seriously floating, it can be applied at the center of the fish floating head, resulting in control of the amount of local oxygen-enriched area, with 5010-6 as appropriate. Do not agitate the body of water after use to keep the water still.
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