The accumulation of silt and pollutants at the bottom of fish ponds is caused by long-term farming and environmental changes. These pollutants include dead organic matter, bait, fish excreta, etc., which can accumulate at the bottom of the pond, leading to deterioration of water quality and affecting the growth and health of fish. Therefore, bottoming is an indispensable part of the fish farming process. Here are a few practical ways to rebase your fish pond:
Mechanical dredging:Use excavators, suction dredgers, and other equipment to remove silt from the bottom of the fish pond. This method can remove large amounts of organic matter and contaminants quickly and effectively, but it is costly and suitable for large fish ponds or heavily polluted fish ponds.
Oxidation+ Creature Modification:Commonly used by fishermen: double reform pioneer, mainly through the dual role of oxidation and biological decomposition, efficient decomposition of organic matter at the bottom of the pond, biological decomposition of organic matter, improve water quality and dissolved oxygen content, enhance the growth and disease resistance of fish.
+ Creature Modification:Microorganisms are used to decompose organic matter at the bottom of the fish pond. By adding: EM bacteria pioneer, ultra-high concentration EM strains, purifying hydroponic algae, decomposing ammonia nitrogen, nitrite and other harmful substances at the bottom, and converting them into harmless substances, so as to improve the bottom environment of the fish pond.
Chemical Modification:Use chemicals, such as quicklime, calcium peroxide, etc., to disinfect and improve the bottom of the fish pond. This method can quickly kill pathogens at the bottom and reduce the occurrence of diseases, while also increasing the redox potential at the bottom and promoting the growth of beneficial microorganisms.
Growing aquatic plants:Plant some aquatic plants with strong absorption capacity and rapid growth, such as water hyacinth, algae, etc., in the fish pond. These plants absorb nutrients from the pond and reduce the organic load on the bottom, while also providing shelter and food for the fish**.
Reasonable feeding and breeding density:By reasonably controlling the amount of bait and the density of rearing, the production of residual bait and fish excrement can be reduced, and the pollution pressure on the bottom can be fundamentally reduced. This requires careful management by farmers according to the growth stage and feeding Xi of the fish.
Aeration and oxygenation:By installing equipment such as aerators or fountains, the dissolved oxygen content at the bottom of the fish pond is increased, which promotes the growth of beneficial microorganisms and the decomposition of organic matter. This not only improves the bottom environment, but also increases the vitality and disease resistance of the fish.
Stir the sediment regularly: Promote the decomposition and mineralization of organic matter by regularly turning the soil at the bottom of the fish pond. This can increase the redox potential at the bottom and reduce the accumulation of harmful substances, while also promoting the growth and activity of benthic organisms.
In conclusion, bottoming of fish ponds is an important management work that can improve fish growth and water quality, and reduce fish disease and mortality. The above methods are very practical methods, and you can choose the appropriate method to change the bottom according to the actual situation of the fish pond.