Juwel Filter Pads for Juwel Bioflow L Filter

Keep your aquarium water crystal clear and your ecosystem healthy with a complete, easy‑to‑maintain filter media set designed for mechanical, chemical, and biological filtration.

As a mechanical pre-filter, fine filter wool reliably captures coarse dirt particles, protecting the subsequent media from rapid soiling and ensuring long cleaning intervals. Made from residue-free polyester, it is suitable for both fresh and salt water.

For chemical filtration, activated carbon sponges absorb odour compounds, turbidity, and toxic substances, delivering brilliantly clear water and effectively removing residual medication after treatments. The sponge format ensures even flow conditions and maximizes effective surface area for superior performance.

Biological filtration is powered by specialized sponges and bio-media that cultivate vital microorganisms. These beneficial cultures break down harmful metabolites (ammonium/nitrite) and anaerobically reduce nitrate, helping to curb algae growth, promote plant vitality, and support the overall health and activity of your fish. Coarse pore structures provide a large surface area and stable water flow, ideal for aerobic biological processes, while fine sponges polish the water and stabilize long-term bioactivity. Open-pore foams are produced without chemical residues for safe, reliable use in freshwater and marine setups.

Benefits at a glance:
• Mechanical pre-filtration traps debris and extends service life of other media
• Activated carbon clarifies water, removes odours, toxins, and residual medication
• Biological media reduce ammonium/nitrite and lower nitrate to limit algae growth
• Enhances plant growth and fish vitality with purely biological action
• Even flow conditions and large effective surface for consistent filtration performance
• Suitable for freshwater and saltwater aquariums

Maintenance is simple: clean or replace one sponge at a time at intervals recommended in your filter’s guidelines to preserve a stable biological balance. Use with compatible filter baskets to make servicing fast and mess-free.

Choose this integrated filtration solution to achieve clear, healthy, and stable water—combining debris capture, crystal‑clear polishing, and deep biological purification for a thriving aquarium.

JUWEL BioPad catches coarse particles of dirt in the water, thereby serving as a mechanical pre-filter.

JUWEL BioCarb filters absorb odour compounds and turbidity as well as toxic compounds, leaving the water in your aquarium crystal clear.

JUWEL Nitrax is a biological filter medium to break nitrates down in your aquarium. It reduces the growth of algae and promotes the vitality of your plants and fish.

The JUWEL filter sponge coarse serves for the mechanical and biological filtering of your aquarium.

The JUWEL fine filter sponge is primarily used for the biological filtering of your aquarium in the an aerobic zone.