William_Strikercommentedweek 77 years ago
the ppm should never exceed the wattage of your light and thats at the very end. if you veg 4 weeks (veg not seedling.) and flower 8 weeks. from the start of veg i would use 50 ppm or less of nutrients and increase by 50 per week till week 4, then no nutrients period. (cube, solo cup, 1 gallon, 3 gallon).
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