thread: Purple Tang
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Old 12/10/2017, 11:04 AM   #5
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Join Date: Dec 2016
Posts: 401
Is he scratching flashing or breathing heavy? If cu levels were maintained at 1.5-2.0 ppm and tested daily that's proper protocol however as mentioned above rock and sand don't mix well with cu and if your levels dropped below thereputic that might be the cause

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