Seachem CupriSorb 250 ml is a highly effective, copper-specific chelating resin designed for the rapid and efficient removal of copper and other heavy metals from both freshwater and marine aquariums. Unlike common cation exchange resins, this powerful adsorbent is uniquely formulated to remain effective in saltwater environments, extracting all forms of copper, including even chelated varieties. It serves as an ideal solution for emergency copper removal and preventing the problematic leaching of copper from substrates.

This specialized filter media offers a clear visual indicator of exhaustion, changing to a distinct deep blue-black color when its capacity is reached. For continuous use, CupriSorb is capable of gradually extracting precipitated copper that may have settled in the gravel or substrate bed. For optimal performance, it should be placed in a filter media bag or reactor cartridge within a canister filter, chemical filtration module, box filter, or any area of high water flow. A 250 ml container is recommended for every 600 liters (150 US gallons) to effectively remove up to 7,500 mg (12 ppm) of copper.

Seachem CupriSorb is an indispensable tool for reef aquarists and serious fish keepers who require a safe and swift method to eliminate copper from their tanks, particularly after medication treatments or in cases of accidental contamination. Its unique capability to eradicate substrate-leaching copper is crucial for enabling the successful reintroduction of sensitive invertebrates into systems that previously hosted copper-treated fish. This product ensures superior water quality, safeguarding delicate marine inhabitants from the detrimental effects of heavy metals.