Filter media for TetraTec EX range and other external filters. Efficient biological and mechanical filtration.

Rinse in lukewarm water prior to use. Clean as necessary in a bowl of aquarium water. To maintain biological activity, do not wash under tap water.

Suitable for most external filters (ensure foams fit neatly into media basket).

High surface area to support growth of beneficial bacteria
Reliably removes medium sized particles from aquarium water

BF 600/700 for EX 600 & 700; BF 1200 for EX 1200