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Bio Spheres are a durable dense arrangement of smaller spheres creating an ultra-high surface area media which reduces the volume of bio-media required for efficient nutrient cycling in both fresh and saltwater aquariums and ponds. This unique ceramic media has a unique cross-cutting surface area that creates an ideal surface for dense populations of beneficial bacteria that remove ammonia and nitrites from your aquarium's water. Some systems may also notice a decrease in nitrates. Suitable for sumps, reactors trickle filters, wet/dry filters, hang on the back filters, or directly in the tank.
