Aquarium Filter Media

Choose filter media for the job it needs to do

Mechanical media traps particles, biological media provides surfaces for the filter's bacteria, and chemical media has more specific uses. Identify the problem or maintenance task before choosing a new aquarium filter medium.

Check the available space, recommended quantity and whether the material needs a media bag. Follow the instructions for preparation and placement within your filter, and consider how a change will affect the established filtration system.