• Fluval BIOMAX bio rings have a complex pore system creating an optimal environment where beneficial bacteria can thrive.
• BIOMAX bio rings have more capacity than most biological filter media and allow ideal water movement throughout the media to ensure optimal contact time for efficient biological filtration.
• BIOMAX also reduces and controls ammonia and nitrate.
• For freshwater and marine environments.

For filter models: 106, 206, 306, 406, FX5, 105, 205, 305, 405, 104, 204, 304, 404.