Seachem CupriSorb is a specialized filtration media designed to be a powerful adsorbent of copper and heavy metals from both freshwater and saltwater aquariums. It acts more rapidly and efficiently than carbon, making it the ideal choice for emergency copper removal after treating a tank with copper-based medications. This media helps restore water quality to a state that is safe for sensitive inhabitants by targeting and eliminating harmful metallic contaminants.

Unlike standard cation exchange resins that are often ineffective in saltwater, CupriSorb is a unique copper-specific chelating resin. This advanced formulation allows it to extract all types of copper, including difficult-to-remove chelated copper. A single 250 mL portion is capable of treating a 150-gallon aquarium, removing up to 7,500 mg of copper. For ease of use, the media provides a clear visual indicator of exhaustion by changing from a light color to a deep blue-black, signaling when it's time for replacement.

This product is essential for aquarists who need to make a previously medicated tank safe for invertebrates like corals, shrimp, and snails. It is also invaluable for hobbyists acquiring a used aquarium system, as CupriSorb can gradually pull residual copper that has leached into the substrate and rockwork over time. By placing it in a high-flow area like a media reactor or canister filter, you can ensure your aquarium is completely free of toxic copper, creating a safe environment for a thriving reef.