Universal Pond Filter Media - 2" Thick | Coarse Texture UVC116 All ponds exchange oxygen and

All ponds exchange oxygen and other gases at their surfaces

uneaten fish food

This waterfall box is Blue Thumb part number PB1083 (formerly known as Pond Builder)

MPC-120C has a 3-way manifold

Universal Pond Filter Media - 2" Thick | Coarse Texture UVC116 All ponds exchange oxygen andThis 2 inch thick white filter media has a coarse density, making it perfect for catching debris while allowing water to flow through freely. It can be used in a variety of pond applications, such as in a skimmer, biofilter or even a small prefilter on a pump. The textured substrate of this filter media provides a great "home" for good, beneficial bacteria to grow. Beneficial Bacteria help break down organic material and help to convert toxic ammonia