bit of help please!

cmon guys what the hell is this ive been asking for ages no one was right so far.... if u know what it is what cani use around the house to fix the problems

I wish I knew to help. I'm sure as hell curious what that if and the fix as well. I'll be watching to find out. I hope someone helps you

to me it looks like possible Blight, only other thing i could think of, would be Mites... you sprayin those plants with water under high wattage HID's?

600w yes i do spray but the lower leaves inside the canopy arealso this way if not worse

do U check ppm?...it looks like salt build up, and the resulting problems that snoball from said salts.......do u check ph run off and ph the water every time?.......ppm is important as it will cause and support salt build up , especially in hard watr areas...heres a test....cut off anough of those leaves to dry and roll in a joint, watch the ashes...do they appear consistant in color or is there dark spots, does it burn evanly....ok ..heres another test...put a couple wet leaves in the microwave and turn on...it shoudnt cause hotspots that seem to ark and spark ......sometimes ive seen it pop....you wont get this with a balanced leaf ...only an IRON or salt poisoned leaf will burn with these charactaristics

if leaves inside the canopy are the same, then its not what i was refering to with spraying with water... if the light is too much, and you spray, the water will create a lense and burn the shit out of your plants... when you spray it with water, do you see webs over the sections? like super fine spider webs?

only other thing i think it could be, is Blight if its not the other 2, or, as richinweed said, salt buildup, which will burn the shit out of them too... you can do as he says to test them, or flush them heavily and see what happens on the new growth..

i have only just repotted them and it was like this straight into the grow and i never use nutes untill week 3 this problem arose at week 1 or 2 i check ph and im confused by it i have a meter that goes in the soil that says its slightly acidic but it some times goes up but the run off comes out at 6 or sometimes less i watered today with ph water at 7.8 to raise it.. i normally put nutes/water in at around 6.5 i use lemon juice for ph lowering and baking soda to raise it

Look into manganese def.Maybe some micronute issue. A 1/2 a centrum vitamin in 4 gallons of water help with that. Some pH meters suck BTW.

i got the epsom and my nutes have cal and mag in it too ive also fed with epsom and then tried calcium

my run off is coing out at 5.7 but i was putting it in at 8! wtf?!?1 i keep putting it through and it wont change?!?! why???

water won't buffer the soil, the soil has much more buffering power than the water.

you have ph-related lock-outs. most nutes dig a little bit of acid, but sounds like you are really acid. a tbs of lime worked into/watered into soil. maybe.

U could transplant into a larger container and then water with high ph should help or add lime as said above but still would transplant to bigger pot if u can and add lime to that as well

nutrients and a flush will do and dont spray with the lights on anymore

spraying with the lights on is fine that isnt causing my problem the lights are moved when i spray them andthe spray stays on the plants for a maximum of ten minutes as i have great air flow and the plants suck all the juces up them selfs i have been using baking soda to lower it and it is doing it but sloly i have currently ran my res through the pots over 10 times with a ph of 7.4 and over i cant get lime where i am at the moment