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Biological Filter Media sera Siporax Professional 15 mm — 10 L
Summary description:
Biological filter media sera Siporax Professional, 15 mm granules, 10 L volume. Designed to provide a large surface area for beneficial nitrifying and denitrifying bacteria in aquarium and pond filtration systems. Stable ceramic-like grains promote effective biological water purification, reduce ammonia and nitrite, and are suitable for internal and external filters, biofilters and sump systems.