For Wubing Pond, only mechanical oxygenation and medical emergency can be used. Strong oxygen water purifier is a good chemical oxidizer commonly used at present, and other commonly used chemical oxidizers include calcium peroxide, sodium perborate, sodium percarbonate, hydrogen peroxide, etc. Black ice can easily lead to hypoxia in aquaculture waters, and accidents of dead fish due to hypoxia occur from time to time, posing a huge threat to the safe overwintering of fisheries. However, due to the high cost, it can only be used for rescue.

There are unmelted snowflakes floating on it.Aquatic aerator tells that when freezing rain and snow weather comes, it is necessary to do the following work to prevent the occurrence of water mold: strengthen the cold and warmth of fish, anti-freeze and anti-injury work, and strengthen the cold-proof shelter at the upper wind of the overwintering fish pond Other facilities or scatter straw in the pond to prevent the convection between the water and the water and prevent the water temperature from falling sharply; strengthen the autumn cultivation of fish and feed high-quality feed to enhance the physique of the overwintering fish and enhance the disease resistance of the fish; pay close attention to the overwintering

If there is any leakage in the pool, if the ice surface is found to be collapsed, water should be refilled in time; always measure the dissolved oxygen, pay attention to the change of dissolved oxygen in the automatic fish feeder Supplies water body of the wintering pool, you can measure once every 5 to 7 days, and once every 1 to 2 days before and after the Spring Festival. When using mechanical oxygenation, it should be noted that the time should not be too long and the amount of water conduction should not be too large, so as to prevent fish's stress response as much as possible.

The so-called black ice refers to the snowy weather in the early winter when the water body is not frozen. The manufacturer of aquatic aerators tells that mechanical aerators can be used for aeration by impeller-type aerators, circulating water inside ponds for aeration, drawing river water and large surface water for replenishment and aeration, and taking adjacent pond water with high oxygen content for replenishment and oxygenation

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