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Feature

Biological filtration media that helps remove harmful ammonia and nitrite in the water
Ready to use bags, convenient use for all types of filters. Good to use in both fresh and saltwater tank
The ceramic material that the ceramic rings is made of is porous. The tiny pores make it an ideal home for beneficial bacteria to grow.
Mesh bag size: 8"x 5.5". The zipper-designed bag is reusable. Ceramic rings size: 1/2"x 1/2"
Package includes: 1 lb premier bio ceramic rings in mesh bag

Description

These Bio Ceramic Rings in Bag are for Aquarium Fish Pond Reef Canister Filters. The surface area and tiny pores make it an ideal home for the cycle bacteria that you want in the filter. Its cylindrical and hollow shape allows water flow through and less likely to get clogged.