Seachem Copper Test Kit
This kit measures copper in freshwater or marine water to less than 0.05 mg/L. Can also detect chelated copper. MultiTest Copper performs over 75 tests and contains a reference sample for validation.
FAQ
What is the detection limit of the copper test kit?
The kit can measure copper in water to less than 0.05 mg/L.
Does this kit measure chelated copper?
Yes, the kit can detect chelated copper.
How many tests does the kit perform?
The kit performs over 75 tests.

Lily Sanderson –
The test kit is easy to use and gave accurate results. I’ve used it regularly in my aquarium to monitor copper levels. The reference sample helps confirm the readings, which is very helpful for consistency.
Joan Terry –
Works well for checking copper in both freshwater and marine tanks. The instructions are clear and the results are reliable. Slightly more expensive than other kits, but the accuracy justifies the cost.
Christopher Hardacre –
I’ve been using this kit for several months now and it’s proven to be very consistent. The chelated copper detection is a big plus for my reef tank setup.