Protect your pond and fish against leaf pollution and predators with these low visibility nets Easy to install, unobtrusive cover net ideal for keeping for your pond protected. Blagdon Clearview Fine Pond Cover Nets are easy to use protection for fish from herons, cats and other predatory animals and prevents your fish from jumping out of the pond. Clearview Nets also prevent leaves and other litter falling into your pond, causing water quality problems and damaging filters. Over half a century of fish keeping and water gardening knowledge are brought together in the product so you can be assured of a successful, creative water garden.