Description
Seachem Pond Matrix 4L (OasisSeachem) — High-Porosity Biological Filter Media For High-Volume Water Flow Pond Filtration Systems
Seachem Pond Matrix 4L “OasisSeachem” (SKU: 724922-2119) is a 4-litre container of high-porosity biological filter media engineered specifically for high-volume pond filtration systems. It provides exceptional surface area for nitrifying and denitrifying bacteria, keeping water crystal clear and free of dangerous ammonia, nitrite, and nitrate build-up.
Its stone-like composition is totally inert, ensuring long-term structural integrity and zero leaching of heavy metals or mineral impurities into pond water.
Usage & Application
When to Use
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Large Canister & Pressure Filters: Fills primary biological compartments in large pond filters.
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Custom Sump & Waterfall Systems: Secures biological filtration in high-flow water features.
Placement & Flow Guide
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Pack into mesh bags and place directly in active water flow paths behind mechanical filter pads.
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Rinse periodically in removed pond water to clear surface detritus without harming biofiltration.
Product Specifications & Highlights
Key Features
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Superior Biological Surface Area: Provides >160 m²/L internal porous area.
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Complete Nitrogen Removal: Converts ammonia, nitrite, and nitrate into inert gases.
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Clog-Resistant Geometry: Maintains high water throughput in outdoor pond filters.
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Lifetime Material: Inert stone matrix never needs replacement.
Product Details
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Brand: OasisSeachem / Seachem
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SKU: 724922-2119
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Barcode (GTIN/UPC): 000116211901
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Product Type: Filter Media / Biological Filtration Media
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Package Dimensions: 160 mm (L) × 160 mm (W) × 310 mm (H)
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Gross Package Weight: 1,650 g
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Net Volume: 4 Litres
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Target Environment: Large Ponds & Sump Filtration Systems


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