Hey I'm new to this I just started growing these lemon sour seeds I have them in 3 gallon pots but today I spotted these blea gh marks on my fan leaves she's about 2 weeks old I'm growing in coco & fox farm 60/40 I was wondering if this is probably done by ph fluctuation since I didn't ph my water and my tap is about 7. I check for bugs in case but no sign off any critters
Probably a lil nute splash during feeding. When the water dries, the nutes stay and burn the plant tissue. My oldest leaves always take a hit from this, really bad if you use halo rings. It'll be fine.