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Dr Pepper
Guest
View BadgesIt's four weeks with copper but then you want to quarantine the fish again without copper in the tank. Just to make sure the ich is all gone. Instead of rushing it by just treating copper and putting the fish back in the tank. You can do that but if you want to be absolutely sure you have no more ich quarantine without medication for another 3-4 weeks.I read that by raising the temp it can be 4 weeks.