Seachem MultiTest Copper

Seachem MultiTest Copper measures all types of copper, both free and chelated, down to less than 0.01 mg/L, with 75 tests in the box. It is the kit you reach for whenever copper is in the water: dosing a copper medication in a quarantine tank, or confirming every trace of copper is gone before inverts go back in. It works in freshwater and marine, and pairs with the rest of our water testing gear and medications.

Why Test Copper

• Keep a treatment in the safe, effective window. Copper medications only work in a narrow range. Too little and the parasite survives, too much and it harms your fish, so you dose to a number and hold it there by testing.
• Confirm copper is gone. After treatment, copper lingers on rock and substrate and leaches back out. Testing is the only way to know a tank is truly safe for inverts again.
• Reads every form of copper. It catches both ionic and chelated copper, so it works with modern chelated treatments that some simpler kits cannot read accurately.

Specifications

Recommended Pairings

• Seachem Cupramine, the copper treatment for marine ich and velvet that this kit is designed to dose and monitor.
• Seachem Matrix Carbon, run activated carbon to strip copper out of the water once treatment is finished.

FAQ

What copper level should I hold during treatment?
Follow the directions on your specific medication, since each product targets a different level. This kit lets you dose up to that number and keep it steady for the full course.

Is copper safe for a reef or planted tank with inverts?
No. Copper is toxic to snails, shrimp, crabs, and corals. Treat only in a separate quarantine tank, never in a display that houses invertebrates.

Does it read chelated coppers like Cupramine?
Yes. It measures all forms of copper, free and chelated, so it works with modern treatments as well as older ionic ones.

How do I get copper out when I am done?
Run fresh activated carbon and do water changes, then test until copper reads zero before adding any inverts back.