Fluval U Series Underwater Filter Stage 3 Biomax Biological Filtration Media.
Fluval Biomax bio rings have a complex pore system creating an optimal environment where beneficial bacteria can thrive.
The biomax bio rings have more capacity than most biological filtration media and allow ideal water movement throughout the media, to ensure optimal contact time for efficient biological filtration.
The populations of bacteria that come to inhabit the media reduce and control levels of ammonia and nitrate.
For freshwater and marine environments.
Fits Fluval U2 Fluval U3 and Fluval U4 Underwater Internal Filters.
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