Cleaner Water. Healthier Fish. Reusable Filter Media.

Great water quality starts with great mechanical filtration. The Aquafilter 8D Washable Fish Tank Filter Cotton is a premium, reusable filter sponge that traps debris, waste particles, and suspended matter before they cloud your water or stress your fish — keeping your aquarium crystal clear and your filter running efficiently for longer.

Why Aquarists Choose Aquafilter 8D

• 8D Multi-Layer Filtration — Dense, multi-directional fiber structure captures fine and coarse particles effectively, providing superior mechanical filtration compared to standard single-layer filter pads
• Washable & Reusable — Simply rinse in tank water during water changes to restore flow and filtration performance — no need for frequent replacements, saving you money over time
• 2cm Thickness — Substantial depth provides excellent particle trapping capacity and longer intervals between cleaning compared to thinner filter pads
• 6 Size Options — Available in 11x50cm, 30x40cm, 40x50cm, 30x120cm, 50x120cm, and 40x200cm — cut to fit any filter housing, sump, canister, or HOB filter
• Easy to Cut & Customize — Flexible foam cuts cleanly with scissors to fit any filter chamber, sump compartment, or custom filtration setup
• Beneficial Bacteria Support — Porous structure provides surface area for beneficial bacteria colonies to establish, adding a biological filtration benefit alongside mechanical filtration
• Compatible with All Filter Types — Works in canister filters, hang-on-back filters, sump systems, internal filters, and DIY filtration setups

Perfect For

Freshwater and saltwater aquariums, planted tanks, cichlid tanks, reef tanks, and any aquarium where clean, clear water is a priority. Suitable for beginner and advanced aquarists alike.

Pro Tip

Always rinse filter cotton in old tank water (never tap water) to preserve the beneficial bacteria colonies living in the media. Replace when the foam begins to break down and loses its structural integrity.

By Dog Hugs Cat — reliable aquarium filtration media for fish keepers who take water quality seriously.