50Pcs Set Durable Black Bio Porous Filter With Sponge 16mm/26mm Aquarium Filter Material Porous Structure Bio Balls Fish Tank

Lightweight and easy to carry, good 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 When the water flows through internal space, prolonged the time, using the nitrifying bacterium to achieve the effect of biochemical filtration Large volume, strengthened the effect of filtering bacterium Great help to recover the nature water quality, and provide the most suitable living environment for your fishes Item Type: Aquarium Filter Material Material: PVC + Sponge Color: Black Optional Type: 16mm(0.63in), 26mm(1.02in) Quantity: 50Pcs Package Weight: Approx. 62-2410g

Package List 50 * Biochemical Ball