Big Peng AC70 Aquarium Filter Media Kit, 7-Piece Replacement Set

Big Peng AC70 Aquarium Filter Media Maintenance Kit is a replacement media set for Fluval AC70 Power Filters, designed to support aquarium filtration in freshwater and saltwater tanks.

• Fits Fluval AC70 Power Filters — choose replacement media for the compatible filter model.
• Includes 1 blue foam, 2 activated carbon, 1 BioMax pellets and 2 intake strainer sponges — a coordinated set of filter media.
• Activated carbon helps remove cloudiness, odors and impurities from aquarium water.
• High-density foam traps debris and fine particles while allowing water to flow through.
• Media can be changed without tools — unplug the filter and insert the replacement pieces.

Filter media collects particles and supports filtration as water passes through an aquarium filter. This maintenance kit brings together foam, carbon, BioMax pellets and intake sponges for routine media replacement, whether you keep a freshwater or saltwater aquarium. Its components are intended to help maintain clear water for fish and aquatic plants.

Which aquarium filter does this kit fit?

Big Peng AC70 Aquarium Filter Media Maintenance Kit is compatible with Fluval AC70 Power Filters. It is a replacement media set for that filter model, rather than a complete power filter.

• Made for use in freshwater and saltwater aquariums.
• Contains media components for the filter and its intake strainer.

What comes in the maintenance kit?

The Big Peng AC70 Aquarium Filter Media Maintenance Kit contains seven pieces across four media types: 1 blue foam, 2 activated carbon pieces, 1 BioMax pellets unit and 2 intake strainer sponges. Together, these provide replacement components for the filter media setup.

The blue foam and intake sponges capture debris and fine particles. Activated carbon helps address water cloudiness, odors and impurities, while BioMax granules coated with beneficial bacteria further support filtration.

• Blue foam: 1 piece.
• Activated carbon: 2 pieces.
• BioMax pellets: 1 unit; intake strainer sponges: 2 pieces.

How do the filter media and replacement process work?

Big Peng AC70 Aquarium Filter Media Maintenance Kit combines particle-trapping foam with activated carbon and BioMax pellets to support different parts of the filtration process. The high-density filter sponge and intake sponge capture debris and fine particles without obstructing water flow, helping keep aquarium water clear for longer and reducing the need for media replacement.

To replace the media, unplug the filter, then insert the filter pad, activated carbon and ceramic rings. No tools are required. The media is designed for quick replacement, and the brand’s filtration claims also include helping maintain the health of fish and aquatic plants.

• Foam media captures visible debris and finer particles.
• BioMax granules are coated with beneficial bacteria.
• Unplug the filter before replacing media; no tools are needed.

This kit suits aquarium keepers who use a compatible Fluval AC70 Power Filter and want replacement media for freshwater or saltwater filtration. It is a media maintenance set, not a standalone filter, and its contents are sized for the AC70 model. Its combination of foam, carbon, BioMax pellets and intake sponges provides the replacement media components for that filter.

Read our guide: A beginner’s aquarium set-up checklist: from bowl to tank