yan402answered grow question 4d ago Hey bro, it doesn’t look like a nutrient issue, from the pics, it looks like those leaves were pressed right up against the side of the tent, that reflective surface doesn’t breathe, and when humidity's up, moisture can build up right there. The pale spots you're seeing are most likely from that contact, kind of like a wet rash or light leaf rot from trapped moisture.
I'd gently pull those leaves away (or defoliate) from the wall, clothespin, string, whatever works, increase airflow across the sides, and wipe the tent walls down just in case there’s buildup.
Should recover just fine, not a feeding issue from what I can see.
Good luck with the rest of your grow bro.
🤞🍀♥️✌️