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)