ok so i checked the girls today and noticed some leaves had discoloration. i think its from 2 leaves laying on each other that creates some "sweat" and the "sweat" then cause the problem. its a darker color almost blackish so im guessing its a mold or a fungus growing from the moisture on the leaves. i have a fan blowing on them constantly to help prevent this but it seems to not be working, so does anyone have any ideas as to what is the cause? it hasnt affected them much, and isnt spreading quickly so id like to catch it before it causes major damage.