Bioscaper Pond is easier to install than lined, in-ground ponds since their shapeth are pre-determined. All you need to do is excavate an appropriately-sized hole. Made of rigid, heavy-duty polyethylene construction, the injection-molded water basins are designed to withstand all kinds of extreme conditions, including heavy water loads, hot summers, and frigid winters, and are guaranteed to resist cracking, peeling, and fading for ten years. They are safe for fish and aquatic plants