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Tang, Angel, and Wrasse Nerd!
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My Tank Thread
Checker, I do the math to work backwards to 2.0 PPM copper power.Yeah so the question is do I trust the tester ppm level or the stated on copper power instructions of 29.56ml/20gallon to get 2.5ppm?
The one time my checker was wrong was when I did horrible math — it was early!