Filter media AquaNatura 3DM Octagonal 88×38 mm, 0.5 kg – aquarium filtration material

AquaNatura 3DM Octagonal 88×38 mm filter media is an octagonal-shaped aquarium filtration material designed to support both mechanical and biological filtration. With dimensions of 88×38 mm and a net weight of 0.5 kg, this media provides surface area and internal channels that encourage colonization of beneficial nitrifying bacteria while trapping larger particles, contributing to clearer water in both freshwater and marine setups. The geometry of the pieces helps maintain water flow and prevents compaction inside media chambers and external canister filters.

Advantages

The octagonal shape and porous structure deliver a combination of mechanical particle retention and a large surface area for biofilm development, improving nitrification and reducing ammonia and nitrite levels over time. The individual pieces resist clogging and maintain flow distribution within media baskets, making them easy to rinse and reuse during routine maintenance. Compatibility with a range of external and internal filters and media chambers adds installation flexibility.

Suitable for

• External canister filters with media baskets
• Internal box filters and media chambers
• Freshwater aquaria requiring biological filtration support
• Marine and reef systems where mechanical and biological filtration is needed
• Refugiums and sump chambers that require stable bio-media

When it may not be suitable

This filter media may not be appropriate for nano tanks or very small filters where the 88×38 mm pieces are too large to fit without modification. It is not a chemical filtration medium and will not remove dissolved organics, heavy metals, or odors by itself; a separate chemical media or polishing stage may be required for those purposes.

Key specifications

• Shape: octagonal pieces designed for flow-through contact
• Dimensions: 88 × 38 mm per piece
• Net weight: 0.5 kg
• Function: mechanical particle retention and biological surface for bacterial colonization
• Compatibility: suitable for external and internal aquarium filters and media chambers

How to use

Rinse the media briefly with aquarium water before first use to remove dust. Place the AquaNatura 3DM Octagonal pieces into the media basket, chamber, or a suitable mesh bag inside your external canister or internal filter, ensuring even distribution to maintain flow. During routine maintenance, rinse the media gently in removed aquarium water to preserve beneficial bacteria rather than using tap water or aggressive cleaning. Replace small amounts periodically if pieces show excessive wear, but do not replace all media at once to avoid disrupting established biological colonies.

What to consider before purchase

• Check internal dimensions of your filter or media basket to ensure 88×38 mm pieces will fit
• Determine whether you also need chemical media (activated carbon, resins) for dissolved contaminants
• Consider required quantity for your filter volume; 0.5 kg is a modest pack for supplementary bio-media
• Plan for gentle rinsing during maintenance to preserve bacterial colonies

Usage recommendations

Use AquaNatura 3DM Octagonal as part of a multi-stage filtration setup: mechanical pre-filtering, followed by this biological media, and a final chemical or polishing stage if required. Maintain regular partial rinses with aquarium water and avoid complete simultaneous media replacement to keep biological filtration stable.