Emergency! Holes in leaves, curling , and cupping!!!!!! (**pics**)

600 wattt air cooled light
temps 77f usually ....they dont get higher then 81f and thats only for an hour or so on the days its really hot
im using pro mix bx theyre 11 days old havent added any nutes at all yet theyre in 1gal pots. and I dont spray the leaves with water. They have a fan blowing on them gently 24/7 and my light sched is 20-4. Thanks any help is appreciated.

Also I thought the holes might be from bugs but I dont see anything on top or bottom of leaves.and most of the holes are discolered like in the 6th pic

Noone can help???????

maybe bugs check for bugs heat burned ligths

or check the soil for bugs moving round the top soil

you ph is out from tip burn also see humidity ir heat issue form curled edges. both high and low humidity do that,. means its not processing thew food right

humidity is at 30%-50% usually around 35-40 though. Is this too low??? and i have no clue what my ph is its probablly too high. if I ph my water and nutes to 5.8 will it fix the problems? also my light is 18in above the plants can it be heat? I also have a fan blowing between light and plants and my light is air cooled.

well a 400 hps is only good for 18 inches of good light. then each inch further the lumens drop by 50% hard to say on humidity. your all over. thats 1 reason. big diff in 30% and 50%. cant be swingin it around that far. try n keep within 5% and same as temps from day to night.
if you dont know the ph then thats whats up. you must know that.
so im assuming asking about 5.8 that this is a pro mix or a sunshine soiless mix. i like 6.1 for the majority of my plants in that soiless mix.

you need to check run off before knowing what to do....ph and ppm is have both pens. mosty ph

yeah promix so ph at 5.8 will fix this?

for pro mix its between 5.8 ish to 6.3 ish...i like 6.1 for most strains. its a good starting point. each strain is slightly diff. use 6.1 with water and food always same ph and youll be fine. dont move ph to fix the run off. just keep adding the sam,e 6.1 and it will rise above on its own if the lime in the mix is still active., thats what its for...