thanks morris -- sounds like some good advice. i'm kind of surprised about the molybdenum deficiency; cervantes growers guide says this deficiency is uncommon in cannabis. But I looked up some pics and your diagnosis looks spot on.
Thanks Guyute-- I can't measure the pH runoff with my soil pH tester... but what I did measure in the soil, before correcting it with lime, was a pH of about 5-5.5. Now, it's at a steady 6.
I'm a new indoor grower... I've been trying to do things by the book, but something doesn't look right.
This clone is about 5 weeks old and has been showing signs of what I think is a nutrient deficiency for the last few weeks...
It starts with the larger, bottom leaves: they start turning...