OverviewThe Black Sponge Sheet 50 × 50 × 3 cm is a versatile, DIY-friendly filter media designed for aquariums and ponds. This easy-to-cut sheet is ideal for creating customized filtration layers—perfect for constructing Hamburger Mattenfilters (HMF), sump chambers, canisters, or external filter units.Key FeaturesCustomizable cuts: Easily trim to any shape or size needed for your filtration setup.Mechanical & biological filtration: Traps debris on surface while supporting beneficial bacterial growth in its pores.Available in multiple densities: Choose from coarse (10 PPI), medium (20 PPI), or fine (30 PPI) to match your filtration needs.Aquarium-safe material: Non-toxic foam that won’t affect water chemistry.Eco-friendly reuse: Rinse and reuse multiple times—long-lasting and cost-effective.SpecificationsSize50 × 50 × 3 cmDensity Options10 PPI (coarse), 20 PPI (medium), 30 PPI (fine)UsageCut-to-size for aquarium canisters, sumps, matsFunctionsMechanical debris trapping, bacterial colonizationBenefits for Your AquariumEnhances water clarity by removing debris and particulatesBoosts nitrogen cycling through increased surface area for biofilmAdapts to a wide range of filtration setups and designsReduces long-term costs with durable, reusable performanceAvailable pore sizes allow custom flow resistance and filtration strengthUsage TipsRinse before first use to eliminate shipping dust.Select density based on your filtration needs: coarse for pre-filter roles, fine for polishing stages.Position in contact with water flow, and clean by rinsing in tank water to preserve bacteria.Replace only when foam shows wear or fails to spring back after cleaning.
