in my experience, since the fish is already in the reef tank, catching the fish would cause more harm than good, because of the stress involved, i have done the copper method and had mix luck, i just want to minimalize the stress factor and ride this out. Idealy i should have QT them and maybe then introduce copper slowly, but i didnt have time or a tank to qt and they were already in the bag long enough.
Im currently trying kick ich right now, yes i know it has mix luck with people but this is my first experience with the product, and im just giving it a test run.