The Planted Tank Forum - View Single Post - Red Sea CO2 Indicator
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post #15 of (permalink) Old 03-06-2011, 02:32 AM
Algae Grower
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Join Date: Sep 2010
Location: Hobe Sound, FL
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So I made a 4dkh solution as per instructions from Hoppi. If I put two the two Red Sea CO2 indicator drops prescribed, what color is the solution supposed to turn?
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