Ready to use media bags, convenient use for all types of filters. Good to use in both fresh and saltwater tank.
These ceramic rings and bio balls with sponge inside offer large surface area for efficient biological filtration. Hollow shape rings enhances biological filtration capacity allowing water flow through and less likely to get clogged.
Ceramic ring size: 1/2"x 1/2"; Bio ball size: 1" in diameter. Mesh bag size: 8"x 5.5". Plastic zipper.
Package includes: 2 bags of ceramic rings and 2 bags of bio balls.
