Copper treatments used to combat parasites can leave residual copper in the water long after treatment ends, and that residual copper is toxic to invertebrates - CupriSorb is built to pull it back out specifically.
Why Copper Needs a Dedicated Removal Media
CupriSorb is a copper-specific chelating resin, not just a general cation exchange resin like many competing products, which work in freshwater but fail in saltwater where the high ion concentration overwhelms a generic exchange resin's capacity.
What CupriSorb Offers
- Copper-specific chelating action rather than general cation exchange, which matters specifically in saltwater applications.
- Effective in both freshwater and saltwater, where generic exchange resins often fail in the marine environment.
- Removes residual copper after a copper-based treatment, before returning treated fish to an invertebrate-containing display.
How to Use It
- Run after any copper-based treatment before moving fish back to a reef or invertebrate tank.
- Test copper levels to confirm they've returned to safe levels before reintroducing invertebrates.
- Replace once exhausted rather than assuming indefinite removal capacity.
Seachem CupriSorb is available at Marine Concept Supply - order online or pick up at our shop in Wheeling, IL. Shop CupriSorb, and browse more aquarium care products.

