I have 2 mother plants that vegged a very long time. Near the end of the veg just b4 I switched to 12/12 some of the leaves started to curl up and yellow on the edges. I checked the problems forums with no luck it looks like low mag and too much fan sucking the moisture out. I've trimmed the fan leaves off and they look good for a few days the they get back to sick looking and even more leaves turning. They still have 6 more weeks to finish, any ideas?
I'd post a pic but I don't know how.
I'd post a pic but I don't know how.