T and RH% are OK,... lights may have been too close for seedlings, but that's good now,... Of more concern is the tap water ppm, that's fairly hard water, enough to overwhelm the AN's "self buffering" capacity, which works in solution only, all bets are off once in pot,... Look into getting a pH probe for actual in pot testing, like the Accurate 8, or a more fancy/$ unit like Blue Labs that works basically the same as a pH meter (electrode bulb type) plus all the care that comes with it, same as any other pH meter (liquids only)... this is just for initial part of the grow, pretty soon you'll be doing the 15-25% run-off each time you feed, testing that r-o for pH and ppm's,.. this is how you grow with coco in pots like this, it cannot be treated like true soil or you'll have problems soon enough.... it has to stay evenly moist too, no drying out ever, coco hates that shit and it'll show in the plants... because of this, many folks use RO/Di water, or water that very low in hardness,... those self fill units at stores usually have nice water at much less $$, so grab a 3-5gal jug and use that... this will help with pH buffering as well with the AN nutes,.. use a Ca-Mg supplement for sure, or switch to coco specific nutes,...
Symptoms aren't distinct enough to call,.. might be a few things, so lets see what the next set does,.. some uneven growth isn't uncommon in any case, but this isn't N-tox' or anything like that,....
