Have you checked on the underneath side of the leaves with a microscope?
Is it primarily on the leaves closest to the soil?
I dunno, good luck.
8182KSKUSH Reviewed by 8182KSKUSH on . mold? calcium def? i duno k so the info. about 5th week into 12/12 flower. fox farm ocean forest soil with watering and fox farm nutes about every 3 days. also using superthrive. i just noticed these spots today. the leaves feel a little more moist than the others so im thinking maybe its mold/fungus? i dont know. i also looked through the problem faq sticky thing and it looks like it may be a calcium deficiency too? any tips? thanks oops forgot the pics. Rating: 5