KisanFlex is the market leader in HDPE protective liners for biofloc fish tanks. We offer high-quality 500 microns protective liners that act as an added protection to the biofloc tanks. They are UV stabilized and are inert to most chemicals. Our HDPE protective liners are made from 100% virgin material. HDPE protective liners are black in colour and help to maintain the temperature of the biofloc tank ecosystem.