Mesh Bio Media Bags 7 x 11 inch for Aquariums & Ponds (10 Pack)

Aquarium Filter Media Bags, 7 x 11 inch with corrosion resistant plastic zipper. Great for larger bio filter media.

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Each of our aquarium bio balls filter media for aquarium and pond is covered in spines to dramatically increase the surface area of each ball to nearly 2 square feet providing space for a massive number of beneficial bacteria to colonize. These good bacteria break down harmful organic waste keeping your aquatic friends safe. You will receive approximately 100 1-1/2-inch aquarium filter balls in a mesh bag. Just rinse and use.

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