I’ve got 3 White Widows about to 4½ weeks in veg and overall they look great except for a very few leaves that look like these on 2 of the 3 plants. I plan to begin flowering over the weekend and am wondering what advice the experts might offer to insure I don’t do any more harm.
They’re in a small tent (36" x 20") under a 400 watts of MH light. I’m using Fox Farm soil and nutrients. Last week I bumped up the nutrient ratio up from about half strength to about 3/4, and I’m hoping that might be my problem. The temperature has been pretty steadily in the mid-70’s and mid 60’s during the 6 hours of darkness. Humidity has been a running around 40%. When I go to flower, I’ll change over to HPS light and start the Tiger Bloom. When I fill the my hot tub, I know the water comes out of my well at a ph of around 7.2, and I have not adjusted anything to water these plants.