Seachem Laboratores De-Nitrate is an economical, natural, porous material with a pore distribution and geometry that promotes both aerobic nitrification within the first few millimeters of depth and anaerobic denitrification at the core.
Removes nitrates, nitrites, ammonia, and organics.
High porosity biological media.
Pore size well suited for anaerobic bacteria.
No danger of hydrogen sulfide production as with sulfur based media.