Bio Rings Filter Media - Factory, Suppliers, Manufacturers from China

Aquarium Water Filter Media Glass Ceramic Bio Ring The main material of this biological filter media is quartz powder, which has good characters like high purity, high density to load more wastes in the water, and acid & alkali resistant. With proper mix of materials after high temperature kilning, this biological filter media is an ideal choice for water treatment, such as aquarium fish tank filtration.

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