hey man see how the leaves are going bumpy and a bit dark green / glossy ? could be tiny microscopic pests that are crawling underneath your leaves. they're impossible to see with the naked eye, but what happens is those little pests crawl underneath your leaves and such out the magic plant juice from the leave's veins. Spray with neem oil and a tiny bit of soap solution, or get a couple of foggers and release them in the tent. These pests are very resilient, so honestly there's not much you can really do, but you can try to save them. hope it's not that, but just in case check with a 70x or better microscope and see for yourself. good luck man. š
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