Pond Medic - Ceramic Rings 9kg

Ceramic Rings Are Biological media that provides a very large surface area for beneficial bacteria to grow and live. This bacteria on your ceramic rings are required to complete the Nitrogen Cycle in your filter, which converts harmful ammonia and nitrate into less harmful nitrate.
Comes with filter bag.

Specifications:
Non crumbling rings with strong and durable design

What's in the box
1 x Pond Medic - Ceramic Rings 9kg