Quote Originally Posted by Ganja Guerrilla
I believe your on the very edge of nitrogen toxicity
Yeah, I wondered about this last night, actually. In *theory* this shouldn't be possible using the Lucas Formula, but.......

I know that having reservoir temps too high will lock out nutrient absorption. Assuming that P and K have maybe been locked out, could that account for the nitrogen toxicity?
Help_Needed Reviewed by Help_Needed on . Discolored and twisted leaves The small leaves around the bud sites on all of my plants have started to turn dark and become twisted. The large leaves are not at all affected. I'm using the Lucas Formula, so this *shouldn't* be a nute use (but I'm not rulling that out). I just discovered this morning that the res temps are too high, so maybe that's the issue. Grow Details - DWC Drip Feed Hydro system Lucas Formula - GH based nutes - flowering profile - 920ppm pH - 5.6 and stable 6 - 42w "soft-white" CFL's over Rating: 5