I am on day 84 overall (day 25 in flower mode) I have some spots and discoloration on certain fan leaves (mainly on the tips) and I’m not sure why. Does anyone know what could be causing this? Anything I can do? This is my second grow so is am still a newby. My first grow, the tips didn’t turn brown until closer to the end of the grow.
NOTE: my air pump went out about 3 weeks ago. I think it was only off for about 3 days or so. could the lack of oxygen on those days have caused this?
Thanks everyone for the help