DWC Autoflower Leaves Curling Down

So I'm doin Green-o-matic in a 3.2 gal dwc setup with rockwool under a 250hps. I'm 3 weeks in I think I might have stunted her transplanting early, but I'm having an issue with my leaves curling down and the bottom leaves are yellowing. Area is a little warm as I'm using minimal ventilation around 86-88, I'm using the cutting edge solution line of nutes, liquid karma and liquid gold in captured rain water, I'm also using H202 to clean the water. I've used the nuterient regiment before on non-autoflowers with bottled water and never had a need to check ppm or ph, I probably should but cutting edge says they are ph balanced. I put nuets for the first time last sunday 2/3 strength recomended for seedlings, and this sunday went to 2/3 strength recomended for veg. Anyways any input would be much appreciated.

oh the leaf curling started maybe a week ago

So I'm kinda faded but I think I might have had an epiphany, maybe my medium is too wet. There's no roots showing thru the rock wool yet so the water level is a little above the bottom of the rock wool, maybe a inch, so maybe I lower it just to the bottom of the cubes. I dunno know if that doesn't work I dunno I think I'll flush with ph'd water for a day or two and lower the nute strength. Any advice? Sorry for the yellow hew to my pics but the walls are painted yellow and I haven't put up mylar yet.

Plants look fine do not do anything drastic! Watch your PH religiously and you will be fine. If you are running DWC I would recommend using hydrozyme in your system with H2O2 you have to fuck with it all the time. Please send me a link of your nutes I would like to see them.

hey man just an fyi for ur next grow wait till ur taproot is about a 1/2 inch long before u place it into ur dwc system till then just keep it in a tray with about 1/4 inch deep water to keep ur medium wet and u should be good but otherwise u will recover from this but i owuld def say get a pen that meters ppm and ph it will make ur grow 5x better

SO WEAK I just spent 20 mins replying and I just mistakenly closed the browser.

I appreciate the help guys, Sparkafire you were sayin use hydrozyme what is that what does it do? I'm usin the H202 to make sure the water is clean cause i'm using rainwater thats stored for months in a drum outside. I'm consirned cause all plants in the past I've done have perky upward pointing leaves, and these seem to curl or point downwards which I though was a negative sign. Here's the link to the nutes, I really like em and recomened em, I use the whole line (exepct humtea). I also add Mad Farmer's Mother of All Blooms (MOAB) the later part of flowering.

http://www.cuttingedgesolutions.org/

G13 I should have been more clear I placed the germinated seed with 1/4 tap (or so) into a Aerogaren seed plug, and put that in a dwc then when I saw the second set of true leave I tranfered to a rockwool cube. The root was about 3 inches when I transfered to the cube and when I did that there was no new growth or change for almost a week.

I'm taking heed and goin to the grow shop tomorrow to get a ph and ppm pen, what should the both levels be at?