Bent and twisted leaves with brown marks in 3rd week of veg. What's wrong here? (I wrongfully tried to feed them nutes in the first week of veg)

@The8thChevron this is literally the same thing. I've had PH issues the first week or two. They've got off so fast! Thank you for your answer, Sir!

The one with bleaching leaves probably needed nitrogen. The brown markings could've been just about anything, maybe calmag would be most likely. Don't expect the deformations and colorings to correct themselves, but she won't even care after a few more nodes come in. If new growth is fine and the problem doesn't spread, you're doing it right!

So here's the deal. Week 1 of veg I transplanted them into the water reservoir. The water has 14C at night, 18 at daytime. Growroom temp is 18 at night, 23ish C at daytime. Humidity around 55%. I've purred 30L of PH 5.7 water into each res and added a bit of nutes into the res with fems and half the nutes into the res with automatics only. It was a bad idea because it looked like 3 of 5 had weakened stem or something because they couldn't hold up the leaves and the seedlings laid flat for a day or two. I've changed the water in both reservoirs after 2 days with only PH 5.7 water, waited 2-3 days and the plants shot up again and yesterday i fed them very lightly and they seem to like it but 2 plants got this brown marks and one fem got pale from the inside out while only on water. I wonder what that could be and if it's reversable. Any help is always greatly appreciated :) Stay safe!