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09-30-2011, 12:31 PM #37Junior Member
If you use RO or distilled water you NEED CalMag Plus
I use the BioCanna line in OFFF soil, with crappy tap water; the GH tester says its 7.0. So my question is this... Do I have to worrt about ppm using soil, or should I just keep my water PH'd to around 6.3-6.8? And why are all my stems turning purple, its making me sad.
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