Description
New design with bio-sponge inside, and provide maximum filtration capacity within much smaller filter areas. Our Bio balls are 100% polypropylene making them a safe reliable bio filter media for fresh and saltwater. They are manufactured for use in freshwater fish tanks, saltwater aquariums , sump, koi and water garden ponds, aquaponics, fish hatcheries and much more. Free reusable media bag for easy handling: Size of media mesh bag: 16×16 inch




