Seachem CupriSorb

CupriSorb is a copper-specific adsorbent resin for pulling copper back out of aquarium water, whether it is left over from treatment or leaching in from somewhere else.

Key features

• Targets copper specifically rather than adsorbing broadly the way carbon does
• Useful for clearing residual copper once a course of copper medication has finished
• Works in fresh and marine water
• Darkens as it loads with copper, giving a rough visual sense of how far through it is

Copper is lethal to shrimp, snails and corals at concentrations fish tolerate. A tank that has ever been treated with a copper medication, or a second-hand tank with unknown history, is worth testing before any invertebrate goes in. CupriSorb is one of the tools for bringing copper down; a copper test kit is what tells you where you actually stand.

Use it in a media bag positioned in a high-flow part of the filter rather than a still corner. If you keep invertebrates, our shrimp section is the other half of this conversation. Local pickup at our Lethbridge store.