Biological filter media cut into various sized chunks, increasing the surface area. Chips & Chunks have high surface area and are compatible with virtually any brand, size or shape of pond filter!
Provide increased surface area for beneficial bacteria growth. Rainbow Chips & Chunks will range in size and shape that are cut anywhere between 2 - 10 inch pieces and consist of various sizes, shapes, colors and densities. Color and size of the chunks will vary.
Rainbow Chunks & Chips are a great upgrade for any brand of waterfall or biofilter tank. Rainbow Chips & Chunks are resistant to clogging, and will provide years of effective, worry-free filtration with less maintenance than lava rocks (which are much heavier and more difficult to clean).