Hey! I’m just wondering if someone could tell me the issue with my basil. Grown indoors from seed under grow lights. It’s been over a month with no issues. It’s all been fine up until this point. Then, today I notice this issue on some of the leaves. Is this an overwatering issue? Or a nutrient deficiency? The plants are under grow lights for 18 hours a day. I water them every 2-3 days as (I think) they need (soil dry). I also keep a fan on them for several hours a day. Thanks! #activity source