Pond Filters

Find pond filters and components for mechanical and biological filtration. Compare surface skimmers, biological waterfall filters, submersible filters and wetland filtration components. A complete pond filter system may use several of these together, depending on the pond layout, fish load and maintenance needs.

Check out products from Pond Filters

Choose the right pond filter layout

A skimmer collects floating debris near the surface. A biological waterfall filter provides media space and a waterfall return. Submersible filters and wetland systems use different installation layouts, so check what the selected product does and which additional components it requires.

Match the filter's capacity and flow range to the pond and pump. Leave space to remove baskets or mats and reach service points. A vault, extension or plumbing component is part of a system rather than a complete filter on its own.

For a canister-style system, see pond pressure filters. Browse replacement pond filter media for maintenance, or compare pond pumps when planning circulation.

Common questions

What is the difference between a skimmer and a biological filter?

A skimmer mainly collects surface debris before it sinks. A biological filter provides media for beneficial bacteria. Many ponds use both, with a pump connecting the system.

Does a biological filter remove every type of algae?

No. Biological filtration helps process waste but is not a universal algae treatment. Suspended green-water algae, attached algae and excess nutrients require different checks and maintenance steps.