From the Fluval range. Biomax 1100g. Features: For maximum biological filtration, Supports thriving beneficial bacteria growth, Reduces & controls ammonia & nitrite, More efficient than most biological filter media. Biomax bio rings have a complex pore system where beneficial bacteria can thrive, they allow even water distribution throughout the media, prolonging contact time for optimal biological filtration. Recommended to be replaced every 6 months. For use with: Fluval xl canister filters: fx2, fx4, fx6 / Fluval canister filters: 107,207,307,407 / Sump filtration filters.
