Sponge filter pad ZOOLOGIA square 15x10 cm — aquarium filtration media

ZOOLOGIA square sponge filter pad 15×10 cm is a mechanical and biological filtration medium designed for use in freshwater aquariums. The open-cell foam captures suspended particles and detritus while offering a large surface area for colonization by nitrifying bacteria. The pad is compatible with internal filters, external filter sponge chambers, sponge filters and custom DIY filtration setups used in hobby and planted tanks.

Advantages

The sponge material combines efficient mechanical trapping of debris with stable biological filtration without releasing fibers into the aquarium. Its regular square shape and uniform thickness simplify installation and cutting to size for a range of filter housings. The washable foam can be rinsed and reused during routine maintenance to preserve beneficial bacterial colonies when performed correctly.

Suitable for

• Freshwater aquarium mechanical filtration
• Biological filtration support in internal or external filters
• Sponge filter or air-driven filter setups
• Custom DIY filter cartridges or media pads

Key specifications

• Shape: square
• Size: 15 × 10 cm
• Material: open-cell foam (sponge)
• Function: mechanical and biological filtration
• Reusable: washable for routine maintenance

How to use

Install the ZOOLOGIA sponge pad in the filter chamber so that water flows through the foam for effective particle capture and bacterial colonization. If necessary, cut the pad to fit the filter housing using clean scissors or a utility knife. Rinse the pad gently in aquarium water during regular maintenance to remove trapped debris while retaining the beneficial bacterial layer. Replace the pad when it shows signs of irreversible wear, compression, or when thorough cleaning no longer restores flow.

Usage recommendations

For biological stability, avoid cleaning all filter media at once; stagger maintenance between mechanical (sponge) media and other biological media. Use aquarium water, not tap water, for rinsing to preserve nitrifying bacteria. Regularly inspect the pad for clogging and replace it when water flow becomes restricted.