foam insert
Provides biological and mechanical filtration Maximizes colonization of beneficial bacteria Replacement Media for Fluval 3 Underwater Filters.
The Fluval 3 Plus Foam Pad has been specially developed as a standard filter medium for the Fluval 3 Plus Underwater Filter and maximizes surface contact between the water and the media. The large filtering surface ensures efficient cleaning of the aquarium water and maximizes the colonization of beneficial bacteria.