Japanese Matting is one of the best of all the filtration media available.
The coarse nature of the Matting gives excellent bio-mass retention, with its open texture removing particles from the water.
Extremely inert - and easy to service ... It is available in sheet form and can be cut to the desired sizes to fit your filter chamber by using an Angle Grinder or even a Bread Knife!
We also have Pre-cut Japanese Matting available in packs of 3.