Item Name: Canister Media Wet/Dry Fish Tank Filter Biological Sponge Aquarium Bio Balls. Material: Plastic Aquarium Pond BallsColor: BlackDimensions: Diameter of bio ball: 16mm (included biological cotton)Each filter media is pre-packed in its own mesh media bag.BIO-Balls do not require replacement unless damaged or destroyedThe bio balls provide biological filtration, removing toxic ammonia and nitrite.Great for fresh or saltwater aquarium filtration systems.The bio-sponge inside provide more surface area for growth of beneficial Bio-Spira bacteria100% Brand new and high qualityPractical and durable home using productIn the event of excessive buildup, you may gently rinse with water from an established aquarium, if desiredCan be reused over and over again until it breaksPackage:50 PCS*Aquarium Bio Balls *Please make
