My fish just completed a 30 day long treatment of Cupramine at 0.5ppm last week. I have added Cuprisorb and Carbon in the tank to try to absorb as much copper as possible. I have also been doing more frequent water changes. The quarantine tank is 150 gallons so I am not able to do an extremely large water change all at once. I usually do about 25 gallons at a time. Currently the Cupramine is at 0.16ppm after a week. I was just wondering when I could add my Prazipro treatment? Should I wait until the copper is lower or would it be fine to start Prazipro now?