HDPE has given a waterproof lining that ensures the absence of seepage or loss of water. At steady levels of water, stability may be achieved in fish ponds, hence offering a stable environment for fish to thrive in. The usage of HDPE liners keeps the soil free from contamination and limits the entry of pollutants. This, therefore, ensures better water quality. Healthy fish mean cle... https://www.mohantarp.com/hdpe-pond-liner-increase-fishes-productivity-and-health/