New fish, quarantine and copper

[daplatapus]

I personally have never had much success keeping fish alive treating ich with meds or hypo. Not sure if I'm doing it wrong or not paying enough attention.
But I've yet to lose a fish with the tank transfer method and since I've employed it, I've not had ich in my display. If you have the room and resources, try looking into that method. If nothing else, reading up on it will give you a good you a better understanding of the cryptocaryon life cycle.