The Seachem CupriSorb 250ml is a powerful adsorbent of copper and heavy metals, a specialized chelating resin for copper. It removes all types of copper, including chelated copper, and remains effective until it takes on a deep blue-black color. It can be regenerated multiple times.

If placed in continuous use, it will gradually extract even precipitated copper from the gravel/substrate. CupriSorb allows for the maintenance of invertebrates in aquariums that have been treated with copper, removing copper leaching from substrates.

Notably, competitive products are not chelating compound products but merely cation exchange resins. Such resins can remove copper from freshwater but are ineffective in saltwater.