Water Testing » Copper » Copper Test Kit by Red Sea

Measures nonchelated copper as used in copper treatments for marine fish parasites. Also tests copper content of tap water. Kit includes 55 tests.

Copper—As a harmful substance
Although it is a good treatment for fish parasites, Copper is very toxic to invertebrates. Copper should therefore never be used in the presence of invertebrates.

Tap water is known to contain Copper in certain areas. This amount could be harmful to your aquarium (especially to a reef aquarium), when you use it for changing water. This Copper Mini Lab enables you to check if any Copper is present in your water supply. An amount of 0.1 mg. per liter (0.1 ppm) can already be harmful to marine invertebrates.

The Red Sea Test Kit line is definitely one of the best values to be found.