Fluval BioMax Bio Rings, 1,100 g (38.8 oz)

Fluval BioMax biological cylinders provide a complex porous system where conditions are ideal to promote the growth of beneficial bacteria.

The cylinders have a larger capacity than most other biological filter media, and water moves through them in the best possible way for optimal contact time and effective biological filtration. Additionally, BioMax cylinders reduce and maintain ammonia and nitrate levels.

Key Features:

• Provide biological filter media;
• Support beneficial bacteria growth;
• Reduce and control ammonia and nitrite;
• Are more effective than most biological filter media;
• Should be replaced every 6 months;
• Are offered in a convenient 1100 g (38.8 oz) size;
• Can be used with most external filters;
• Are suitable for fresh and saltwater aquariums.