pale leaf

Hi guys, I’ve seen many deficiencies in years of growing but never seen anything like this nor I can find any information about it. Basically these plants are the most beautiful and healthiest I’ve ever grown; you can see by its rich green color. Yet somehow I started getting pale spots on...

The leaf on my seedling is shriveled/wilted looking, it’s also kind of a pale, light green/white-ish color. The blades on the leaf are cupping upwards, and I’ve noticed some of the other leaves have the same kind of shriveled/wrinkled texture to them and are cupping upwards slightly as well...