Dude, Im running my dwc using Lucas formula too, and I think you're burning the shit out of them if ur 8-16/gal.. That's for flowering, veg is 5-10/gal. For veg, I go with 5-10mL & ppm around 600-750 PH 5.5-6.2. Sometimes even with strong rooted clones in rockwool, some don't like it and the...