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Hey, i use House & Garden , the complete line , i am currently doing hydro with rock wool, water - to - waste with drip lines with a 45 gal res. And i am experiencing some daily fluctuations with the pH levels which I want to know are normal. I use Reverse Osmosis, i add Cal Mag [150 ppms]...

Hey, i use House & Garden , the complete line , i am currently doing hydro with rock wool, and i am experiencing some daily fluctuations with the pH levels which I want to know are normal. I use Reverse Osmosis, i add Cal Mag [150 ppms] back into the water, then i add Aqua Flakes A & B and...