Zerodis Aquarium Filter Material, 50Pcs Bio Balls Filter Media Fish Tank Biochemical Filter Material with Cotton for Fish Tank Pond(36mm)

• [Application] Lightweight and easy to carry, perfect for using in fish tank, pond and aquarium. It can be used not only in biochemical filtration systems in seawater, but also in biochemical filtration systems in freshwater.
• [Guarantee] Our product give the strict assurance of the quality. If there is any quality problem with our products, you can choose replacement or full refund.presents for mom
• [Bio filter ball] Provides a larger, muti faceted area for the growth of beneficial biological spirulina, which can naturally clean your water, is conducive to the oxidation of oxygen convection exchange, and is an important part of maintaining a clean and healthy aquatic environment.
• [Safe Filter Media] Great help to restore the natural water quality, and provide the most suitable living environment for your fishes. Large volume, strengthened the effect of filtering .
• [Delicate Design] Bio-sponge inside provides more area for growth of beneficial Bio-spiral . Many flake structure, internal porous, great for any freshwater or saltwater.

The biochemical ball is lightweight and easy to carry. It can be used not only in biochemical filtration systems in seawater, but also in biochemical filtration systems in freshwater. Perfect for using in fish tank, pond and aquarium. Specification: Item Type: Aquarium Filter Material Material: PVC + Sponge Color: Black Optional Type: 16mm, 26mm, 36mm, 46mm, 56mm, 76mm Quantity: 50Pcs Package Weight: Approx. 62-2410g Package List 50 * Biochemical Ball