Aqua Nova ceramic rings are a high performance filter material that effectively removes residual medicines, chlorine, certain odours and also contaminants which are produced by the metabolism of organic substances.

Aqua Nova ceramic rings are packed in a sealed plastic bag to avoid unnecessary mess, and also comes  in a Aqua Nova fine black filter bag, this makes it easy to use in any filter. The net has a zipper so you can adjust the amounts of ceramic rings in the net.
Ceramic rings should not be used while the Aquarium fish are being treated with any form of medication.