Copper in quarantine?

[howdy20012002]

I use cupramine and it is the only one I would use
Make sure you follow the instructions and test for the levels every day until it levels out and then every week or so after that
Use API or seachem tests kits
If the reading isn't close to what it should be buy another test kit as they can be unreliable especially the seachem
Don't waste your money on the API test it is junk