Aquarium Filter Media Kit Exo Terra FV-6901 – replacement media set for AC20 filters

Aquarium Filter Media Kit Exo Terra FV-6901 is a replacement media set designed for use with Exo Terra AC20 filter units. The kit contains the media elements necessary to restore and maintain mechanical and biological filtration performance in freshwater aquariums and terrarium aquatic setups. Intended for routine maintenance and media renewal, this set helps sustain water clarity and biological balance when installed in the compatible AC20 canister filter.

Advantages

The replacement media kit provides balanced mechanical trapping of particles and a stable surface for beneficial bacteria colonization, supporting efficient biological filtration. Using the correct media combination reduces clogging of downstream components and helps prolong the operational life of the AC20 filter. The kit is sized and shaped to fit the AC20 filter housing, simplifying media replacement and routine maintenance.

Suitable for

• Routine maintenance and media renewal of Exo Terra AC20 filter units
• Freshwater aquarium filtration where mechanical and biological cleaning is required
• Terrarium aquatic setups using AC20-style filtration
• Re-establishing filtration performance after deep cleaning or media exhaustion

Key specifications

• Contents: complete set of filter media components matching AC20 filter layout
• Functionality: mechanical particle removal and biological colonization support
• Compatibility: designed for Exo Terra AC20 filter units (physical fit and layering)
• Intended environments: freshwater aquariums and aquatic terrariums
• Service: intended for periodic replacement during routine filter maintenance

How to use

Turn off the AC20 filter and disconnect it from power before beginning. Open the filter housing according to the manufacturer’s instructions, remove the old media layers and inspect the filter components for wear or blockages. Place the new media components into the filter in the same order and orientation as the original layout to ensure intended performance: mechanical layers first, followed by biological media. Reassemble the filter, reinstall in the system, and restart the unit, checking for correct water flow and absence of leaks. Allow a short stabilization period while beneficial bacteria re-establish on the new media.

Usage recommendations

Replace the media at intervals recommended by routine maintenance schedules or sooner if you observe reduced flow or increased turbidity. When replacing, avoid replacing all biological media at once in heavily stocked systems; stagger renewals to preserve microbial populations. Rinse mechanical media gently in tank water to remove debris rather than using tap water that can kill beneficial bacteria. Follow the AC20 filter manual for safe disassembly and reassembly procedures.