I have another plant next to it but it doesn't seem to have any of those patterns on them. They are drooping a bit tho. They both are Day 29 from sprout
I don't know your watering pattern, generally leafs droop either from to much water or to little. To much is the most common. Try to let your soil dry up until pot drys up decently before watering again. Cannabis like wet and dry periods. Overall they look healthy to me. My current 6 Jock Horror Autos, coco coir grow.
Try hitting in with some Cal-Mag. What type of soil are you using? My current 6 Jock Horror Autos, coco coir grow.
Coco perlite mix I put calmag in already. 2ml per gallon. I'm giving about half a gallon each plant everyday or two. They're in 5 gallon fabric pots lifted.
Some plants need different nutrients, are slighting heavy feeders, ect ect. What one may need, the other may not. Since you are in coco I can't see it being a over watering issue. I would try small adjustments of feed differences, npk, calmag, iron ect. Usually it isn't a overnight change. But you could always try foliar feeding for faster results, then bump it up in your feed if the issue is fixed. My current 6 Jock Horror Autos, coco coir grow.