Description
Seachem CupriSorb 500mL — High-Capacity Heavy Metal & Copper Absorbing Resin for Medium Aquariums
Seachem CupriSorb 500mL (SKU: 724982-203) is a high-capacity synthetic adsorbent designed to scrub heavy metals and copper residues from aquarium water. It is ideal for mid-sized marine displays, commercial maintenance applications, and planted setups plagued by heavy metal leaching from tap water pipes. CupriSorb binds ionic and chelated metals tightly, holding them permanently until acid regeneration.
Using CupriSorb prevents accidental copper poisoning, which can destroy bio-filtration, decimate coral colonies, and kill ornamental shrimp. Its visual colour transition from translucent yellow to dark blue-black allows aquarists to track copper absorption rates in real time.
Usage & Application
When to Use
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Substrate & Rock Decontamination: Extracts copper trapped inside porous live rock or gravel substrates.
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Heavy Contamination Crises: Rapidly reduces toxic copper spikes resulting from accidental overdose or plumbing accidents.
- Highly recommended to use after copper-based water treatments or in cases where copper contamination necessarily needs to be eliminated to protect sensitive aquatic species.
Placement & Flow Guide
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Enclose the media in a fine-mesh media bag and secure it inside a media reactor, canister filter basket, or high-flow sump baffle.
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Replace or regenerate the resin once the entire volume turns dark black-blue.
- Copper levels of tank water should be regularly checked, and CupriSorb should be replaced or regenerated when it gets depleted.
Product Specifications & Highlights
Key Features
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Extended Treatment Volume: 500 mL container treats medium to large systems effectively over extended durations. It effectively removes both ionic and chelated copper along with other toxic metals.
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Protects Invertebrates: Removes trace heavy metals that harm coral polyps, crustaceans, and nitrifying bacteria, while protecting delicate water species, including sensitive invertebrates.
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Visual Saturation Tracking: Turns dark black upon full saturation with copper and heavy metals.
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Acid-Regenerable: Economical resin design allows for repeated reuse after acid washing, allowing the resin to be reused for multiple cycles.
Product Details
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Brand: Seachem
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SKU: 724982-203 (Internal ID: 130728)
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Barcode (GTIN/UPC): 000116020305
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Product Type: Aquarium Filter Media > Heavy Metal Removal Resin
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Package Dimensions: 85 mm (L) × 85 mm (W) × 145 mm (H)
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Gross Package Weight: 390 g
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Net Volume: 500 mL
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Target Environment: Freshwater & Marine Aquariums
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Treatment Capacity: 500 mL treats up to 1,200 Litres (300 US gallons)


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