Biochemical Sponge Filter Foam | Black Aquarium Filter Media Pad for Fish Tanks & Ponds

Crystal-Clear Water Starts Here

Keep your aquarium thriving with this high-performance biochemical sponge filter foam. Designed for both mechanical and biological filtration, it traps debris while cultivating beneficial nitrifying bacteria — the foundation of a healthy, balanced tank. Suitable for freshwater and saltwater setups, and can be trimmed to fit any filter system.

Key Features

• Dual mechanical & biological filtration — removes particles and cultivates nitrifying bacteria
• Multi-porous open-cell structure — maximizes surface area for bacterial colonization
• Higher PPI = finer filtration; lower PPI = greater water flow — choose based on your tank's needs
• Dense structure avoids residue buildup and prevents clogging
• Can be cut to any size — fits virtually any sump, canister, or hang-on-back filter
• Reusable and long-lasting — rinse and reuse, replace every 3 months for best results
• Excellent water permeability and lightweight, soft design
• Safe for freshwater and saltwater aquariums
• Vacuum-packed for shipping — lay flat for 1–2 days after opening to fully expand

Perfect For

• Sump filters, canister filters, and hang-on-back filters
• Freshwater planted tanks and reef aquariums
• Ponds and outdoor water features
• Aquarists looking for a customizable, budget-friendly filter media

Specifications

• Material: Biochemical cotton (polyurethane foam)
• Color: Black
• PPI options: 25PPI (medium filtration, greater water flow) | 50PPI (fine filtration, denser)
• Sizes available: 50×25×2cm | 50×50×5cm | 100×25×5cm
• Harmful chemicals: None
• Packing List: 1× Biochemical sponge filter foam pad

Notes

• Foam is vacuum-compressed for shipping — lay flat for 1–2 days after receiving to fully restore shape. This does not affect filtration performance.
• Allow 0–2cm variance due to manual cutting.
• Replace every 3 months to maintain optimal filtration and bacterial growth.