Fluval Biological Aquarium Filter Media, 5 L Ceramic BIO-FX

Fluval BIO-FX is 5 L of biological aquarium filter media for canister filters and sumps, with a deep-pore ceramic structure that supports beneficial nitrifying activity.

• 5 L volume for use in canister filters and sumps of all sizes, including Fluval FX and 07 series — choose media for compatible filtration systems.
• Safe, inert ceramic that does not alter water chemistry — add biological media without changing the aquarium’s water chemistry.
• Deep pores and interconnected micro-tunnels — provide extensive surface area for biological activity.
• Linked cavities allow even water flow and discourage blockages — water can pass through the media while maintaining contact time.
• Supports beneficial biological activity that reduces ammonia and nitrite — helps maintain a healthier aquarium.

Fluval BIO-FX is made for aquarium keepers who want biological media in a canister filter or sump. Its ceramic structure provides surfaces for beneficial nitrifying activity, while the linked internal channels allow water to move through the media. It is suited to filtration setups where biological filtration is part of the aquarium’s water-treatment process.

Which filters can use Fluval BIO-FX?

Fluval BIO-FX is designed for canister filters and sumps of all sizes, including Fluval FX and 07 series filters. Its 5 L volume supplies biological media for compatible filtration systems across a range of aquarium setups.

• For canister filters and sumps.
• Includes compatibility with Fluval FX and 07 series.

How does Fluval BIO-FX support biological filtration?

Fluval BIO-FX uses a deep-pore ceramic structure with interconnected micro-tunnels to create a large surface area for biological activity. Its linked cavities permit free, even water flow, discourage blockages and extend water contact time through the media. Beneficial nitrifying activity can reduce ammonia and nitrite in the aquarium.

• Made from inert ceramic.
• Designed to support a high concentration of biological activity.

How should Fluval BIO-FX be maintained and positioned?

For best results, rinse Fluval BIO-FX monthly using aquarium water and replace it partially every six months. Place it in the last stage of the filtration process for optimal filtration.

• Rinse with aquarium water rather than changing the stated maintenance method.
• Replace the media partially at six-month intervals.
• Position it at the final filtration stage.

Fluval BIO-FX suits aquarium keepers using a canister filter or sump who want ceramic biological media with defined rinsing and replacement guidance. Its 5 L volume, linked-pore structure and compatibility with Fluval FX and 07 series filters make it a practical choice for those setups.