Leave's Folding like taco's, Purple Stems, Now wilting?

Well last night i watered my plants the soil was dry as can be i thought i was over watering them so i waited a bit before i watered them... So i wake up this morning and my plants are now all droopy last night the leaves where pointed out and looked completly healthy currently they are in Ryder cups i need to transplant them because they are def too big for the cups. Im completly in aw by these plants they have had problems from the get go, i built a stinkbud aero system that im ready to just use that because im sick of figuring out wtf is wrong with these guys..... I moved the healthiest one into it last night and it also took a turn a few bottom leaves curled and crisped up at the tips they curved inwards the ppm is only 450, its 5 gallons of water and i only mixed nutes for 1 gallon so i wouldn't kill teh bitch !.. I can take some pictures around 7pm EST when my lights turn back on in the room. But any ideas ?

i have no idea but i just checked on my big girls and a few of my leaves are starting to roll up as well.

ya its weird because my ph is perfect my temps are 75-80 lights on, and 65-70 lights off so im not sure what it could be ts no parasites, no bugs... Im using fox farm dirt and technaflora nuts at half strength at water water fert.

Im having that same problem but im running dwc and its only one plant thats doing it