leaf curl hella different than i ever seen???? help

i have 4 different strain showin the same thing the leafs are green as they can be but the leaf is curlin in to the stem badly some are on there second loop so i don't think it is over watering. they are clones super skunk, grape, sweet nightmare, the pure. all of them are showin the same damage. not extrem yet only like one or just part of one leaf is doing this but it started with one plant and now its all of them. i just flushed for an hour ph is 6.2 i am using general hydro avd under 600hps with the co2 comin down right on them temp is around 82 with 60% hum. the clones are about 3 weeks old a little over a foot tall??? please help any one i am stressed out as fuck

Your best bet is to fill in a troubleshooting form

http://boards.cannabis.com/plant-pro...anted-one.html

That gives people a lot more info to work from. Also if you have any pictures of the problem, that may help. Welcome to the board! :)

One question . Are you foliar feed spaying them? I did not pay attention and was spraying some on my mother every day and she was looking good for a week. I started to get the same curling your talking about and a little burn and alittle yellow. I looked a the foliar feed and it said no more than once a week. My bad first time useing it, now I know better. she's coming back fine not much damage.

Other than that yes please fill out the form.