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Old 02-10-2009, 04:20 AM
Ron Ron is offline
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Join Date: Jan 2009
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I use General Hydroponics Up which is phosphoric acid, citric acid, and ammonium bisulfate. And pH Down that is potassium carbonate and potassium hydroxide but I don't know at what proportion or I would mix my own.
Any chemist out their want to try?
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