leaves are slighty yellowish and are becoming worped?????

seedings onlys 6 days old but the leaves are starting to look shightly yellowish and are not longer flat, kinda twisting midway down the leaf... runnin under 18-6 light, 1/8 nutrients, ph 6.0, bubblier hrydo system.... should i be worried about this? if soo what should i do? considering switching to just water with no nutriets but not sure....
http://pic60.picturetrail.com/VOL174.../253524827.jpg
http://pic60.picturetrail.com/VOL174.../253524837.jpg
http://pic60.picturetrail.com/VOL174.../253524832.jpg

no nutes untill 3rd week only water and superthrive ,then 1/4 strengh nutes for a week then full strengh you have some kind of nute def i whould flush and reset p.h to 5.8 i will look up the def and get bacjk to ya gis a minute

just replaced the nutrient water with plain h2o ph 5.8... plan on changing this water with ph adjusted water every 24 hours for the next 3 days.... hopefully that will help... then gonna stick with plain water and thrivealive B-1 (superthrive ripe off, cheaper) for next 2 weeks...