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on my first grow doing a dwc. my question is when i read to have the ppm around 800- 1000 is that on r/o or tap water?
r/o or distilled being 0-2ppm so that would be 800-1000ppm of nutrients and what ever else is added to the system.
my tap water is a high, a little over 400ppm. (my town uses...
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