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Ceramic Filter Media Rings Tetra Tetratec CR series for aquarium filters (model CR 400/700/2400) - biological filtration media
Summary description:
Ceramic filter rings Tetra Tetratec CR series (suitable for CR 400, CR 700, CR 2400) are porous biological filtration media designed for aquarium filters. The rings provide a large surface area for beneficial bacteria colonization, improving nitrification and water clarity. Use in canister or internal filter compartments to support biological filtration and reduce ammonia and nitrite levels.