At 123 Aquatics, we stock a range of replacement filter media for Rena external filters. From foam to carbon filter media, you can be sure of finding the right media for your aquarium external filter.
Replacing filter media is a vital part of maintaining a healthy fish tank, to ensure your Rena filter is fully effective. Mechanical filter media such as foam can become clogged with dirt particle and carbon media can become ineffective when it is saturated with chemicals from the aquarium water, so replacement is essential.