Tap water in hard water regions can carry two hundred PPM of calcium and magnesium before you add anything, which changes your feeding maths considerably. Ignoring that starting point is why some growers see lockout despite following a schedule exactly. Adjustments for different source water conditions are explained at https://hazesativaseeds.com without pushing reverse osmosis on everyone. Letting chlorinated water stand overnight is largely pointless now, since many suppliers use chloramine instead.
Water Quality And Hardness |
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