well honestly, i just raised them this morning thinking that was the case cause they were too close, i had them about 2 inches above the lights now they are at about 5 inches
Ok I gotta say this is a head scratcher
watch em with the lights up, but I use those to veg and have had em at 1 inch with no problem???
so not sure, is that in fact tin foil ???
and for watering you want plenty of run off when you water , watering just a bit or with no runoff will lead to problems down the road
also I would run the fan 24/0
How is your source of fresh air ? could be low CO2 causing this ???
ultimately your goal is to get those leaves to relax to stop the stress, make minor tweaks and watch em for response