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- Sep 9, 2017
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So I thought I had removed all of the copper from my QT tank before introducing a new batch of fish today, but just checked and am showing a 1.5ppm reading. I'm \ using copper power and the Hanna checker. Should I just leave the fish in the 1.5 or should I work to reduce the amount of copper? I know I'm supposed to ramp up. Any help would be great.