Im growing a pumpkin in glass jar filled with water (which is proving harder than it looks) it’s been doing alright other than some nutrient deficiencies as I was figuring out how much fertilizer i needed in the water. Recently the first 4 leaves that had grown are starting to get this crunchy ridge on them. I have had a few plants sunburn in my window so I was wondering if that was the case here or if there’s something else. the new leaves are beautifully green and don’t have this problem. I think it might be sunburn but the one thats on the opposite side is having a similar problem so im skeptical

