Finding a truly fish-safe liner at a general hardware store can be a gamble, as many utility liners contain antifungal chemicals or fire retardants that are toxic to aquatic life. When you buy from a dedicated geomembrane fabricator like BTL, we'll help you choose a liner material that's been certified for potable water containment—the highest grade of safety.
Since our RPE liners are chemically inert, your ecosystem will remain healthy for decades. It's always safer to buy from a specialist who understands the delicate biology of a fish pond than from a generalist who views a liner as just another roll of plastic on a shelf.
