They look over stressed due to roughouse LST. When you train plants like this they get stressed.
Reduce watering almost stop watering for now. Do you have an osc fan going in there 24/7 ?
You can keep it veg longer by running an artificial for about 3 hours after sundown. A backyard spotlight, a cfl desk lamp, garden solar lights whatever.
Not sure its a great idea growing haze indoor. Could be a genetic issue , some sativas grow a bit scruffy and dont look as nice as an indica flowering, maybe try raising the light as it seems the top leaves are curling the worst.
No they are looking very good. Outdoor plants dont look perfect after surviving hot days, strong winds can burn leaves slightly but nothing to worry about here.
Ok its nute burn, nothing you can do now just be more carefull in future with feeding, You will still get a good harvest but not as good as if the plant were not burnt.
Its grubs or caterpillars caused originally by moths. If you dont fix it will become a major issue. You can get a residual caterpillar spray for the leaves like carbaryl. Carbaryl is a broad spectrum insecticide used to control most chewing insects. It is a contact and stomach poison that...
What you have read is bullshit about the saturation.
You need to have a coco/perlite mix at 70/30 , you need to let the medium dry between waterings like soil also you need to reduce the ppm they are getting overfed atm they dont need much food they are just seedlings.
If the coco is good...
If this is happening just before lights out its normal. If its happening because of a crap transplant or it doesnt like extra light intensity then its stressed . Need more info not just "why is this happening to me"