Fluval Underwater Filter Bio Max

Fluval BioMax provides an optimal environment for the colonization and growth of beneficial bacteria. The unique bio rings have a complex pore system that provides an optimal environment where beneficial bacteria can thrive. Fluval BioMax also reduces and controls ammonia and nitrate.
Key Features :

Provides an optimal environment for the colonization and growth of beneficial bacteria
Unique bio rings have a complex pore system that provides an optimal environment where beneficial bacteria can thrive
Also reduces and controls ammonia and nitrate
Perfect for freshwater and marine environments
Designed for Fluval U2, U3, U4 Underwater Filters
170 grams (6 oz),