CerMedia MarinePure Biofilter Media GEMS

Sale price$18.99


  • 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, stacked in extra-large filters.

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