The API Copper Test Kit is easy to use and will allow you to monitor safe levels of copper within your aquarium. It's a common treatment for all types of parasitic infections, but if levels get too high they can cause all manner of health problems for your fish.
Each kit is equipped to perform 90 tests and can be used in either freshwater or marine aquariums. Simply compare your result to the colour chart provided to check the results.
If you find that the copper in your tank is too high we would recommend a Filter Carbon.