Dymo Aqua Natura sponge filter for ammonia removal, polyester sponge 254 x 457 x 10 mm, off-white

The Dymo Aqua Natura sponge filter for ammonia removal is a replacement polyester foam pad sized 254 x 457 x 10 mm in an off-white color. Designed to be used in aquarium filtration systems, the sponge provides mechanical removal of suspended particles and a porous surface for colonization by nitrifying bacteria, helping to reduce ammonia levels in freshwater tanks. The pad is compatible with setups that accept flat sponge inserts of these dimensions and can be used as a direct replacement or an upgrade to improve biological filtration capacity.

Advantages

This polyester sponge offers a combination of physical debris capture and a high surface area that supports beneficial bacterial growth. Its uniform pore structure balances flow resistance with effective particle retention, while the thin 10 mm profile allows installation in shallow or space-limited filter housings. The off-white color makes it easy to see accumulated debris and determine when cleaning or replacement is required.

Suitable for

• Freshwater aquarium filtration canisters and hang-on filters that accept flat sponge pads
• Replacement of worn or clogged filter inserts
• Supplementing biological filtration in planted tanks and community aquaria

Key specifications

• Material: polyester foam designed for aquarium use
• Dimensions: 254 x 457 x 10 mm
• Color: off-white
• Function: mechanical filtration and biological support for nitrifying bacteria
• Application environment: freshwater aquaria

How to use

Measure the filter compartment to confirm the 254 x 457 x 10 mm pad fits correctly before installing. Rinse the sponge pad in tank water to remove loose particles and avoid chlorinated tap water that can harm beneficial bacteria. Insert the pad into the filter housing with the full surface exposed to water flow so suspended solids contact the material and bacteria receive oxygen and nutrients. Regularly inspect the pad for clogging and rinse in aquarium water when flow is reduced; replace the pad when it shows persistent fouling or structural breakdown.

Usage recommendations

For stable ammonia control, maintain routine maintenance: rinse the sponge during partial water changes, avoid aggressive cleaning that removes most bacterial colonies, and combine this pad with mechanical pre-filtration and adequate biological media. Use only in freshwater systems and confirm compatibility with your filter housing dimensions before purchase.