Description
MarinePure 8x8x4 * Ideal for Marine tanks * 8x8x4 Inch Block
Designed for Ammonia,Nitrite and Nitrate Removal Primarily designed to provide deep anaerobic zones for de-nitrification in passive systems. Live rock substitute-popular among reef hobbyists as a substitute for live rock because it reduces nitrates more efficiently without harming the environment. Use in sumps or stacked in extra-large filters.
