The Blue Matala® filter media will filter out a much smaller particle and yet still maintain good flow distribution. In larger systems all four types can be used in sequence to essentially remove all solids.
Matala is a progressive filter media that is self supporting and multifunctional. Used for prefiltering, mechanical filter media, biological filtration, spawning mat, plant protection, and as a support for other filter medias. Uniquely versatile, Matala filters are easy to work with and can fit most all filtration needs.
The various densities can be used in sequence or separately for unique filtration requirements. This is one of the greatest characteristics which Matala filters have to offer. No other media on the market can perform this step-wise filtration. Matala filter media effectively separates large particles to small and still maintains a very aerobic and free flow of water without channeling.