50Pcs Bio Porous Filter Biochemical Ball Filter Media Bio Porous Filter Water Filter Material with Cotton for Pond, Fish Tank, Aquarium and Waterfall Fountain(16mm)

• Function: - 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 bacteria, lightweight and easy to carry.
• Quality Guarantee: - Guarantee 100% refund, if you have any dissatisfaction on the quality of goods, please contact us, we are willing to send you a new goods or a full refund.
• How to Work: - When the water flows through internal space, prolonged the time, using the nitrifying bacteria to achieve the effect of biochemical filtration.
• Wide Application: - Our Biochemical balls 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.

Description: 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 Included: 50 * Biochemical Ball