In freshwater aquaculture ponds, due to the high aquaculture density and the large amount of feed input, the prawns, fish and other materials that are easy to move and customs also increase, especially the various metabolites, animal and plant corpses, and residual bait at the bottom of the pond in the middle and late stages of aquaculture. The staying and stacking of the aquaculture ponds put great pressure on the stability of the water quality of the breeding pond. How to transform these residual harmful substances at the bottom of the pond or clean the outside of the pond in time is a key part of the high-level pond culture technology. The use of an impermeable membrane to cover the culture system has brought a turning point for this problem.

The bottom of the pond uses an impermeable membrane system for the creation of high-level aquaculture ponds and the transformation of soil ponds. Geomembrane has good performance in terms of acid and alkali corrosion resistance, anti-microbial corrosion and anti-leakage. Chishui is completely blocked. Because the anti-seepage membrane has a smooth surface, it not only disinfects, but also helps to prevent the transmission of pathogens at the bottom.