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At present, with the development of fish farming, the use of aerators has become very common. It has affirmed the role of aerators in rescuing fish floating heads, improving water quality, and increasing fish production and economic benefits of aquaculture. Using aerators to give full play to their effectiveness is not well understood by everyone. This article is to systematically introduce the use of aerators from the aspects of pond water quality control, the changing rules of dissolved oxygen in the ponds, and the working principle of impeller aerators.
In the pond ecosystem, the amount of dissolved oxygen in the water is an important indicator of water quality. Under normal fertilization and feeding conditions, the amount of dissolved oxygen in the water will not only directly affect the appetite and digestion and absorption of fish. And dissolved oxygen is related to the growth and reproduction of aerobic bacteria. Under hypoxic conditions, the reproduction of aerobic bacteria is inhibited, which causes the organic matter (carcasses of animals and plants and residual food, etc.) deposited on the bottom of the pond to be decomposed by anaerobic bacteria, generating a large number of toxic substances and organics that are harmful to fish. Acid makes water quality worse.
Sufficient dissolved oxygen can accelerate the nitrification of nitrogenous substances in the water, and transform harmful ammonia nitrogen and nitrite nitrogen to fish into harmless nitrate nitrogen, which is used by phytoplankton. Promote a virtuous cycle of pond material and play a role in purifying water quality.