leaves droopy plsss help

i had the plants under a 400 mh lamp but it blew out so i had to transfer them under a 1000 hps in there 3rd week of veg.. still giving them 18/6 for another week but the leaves seem to be all droopy and they look overfed. i fed them just plain water today at one point and after that it seemed to be drooping. but i also put them under the hps at teh same time so i dont know what is causing them to droop... ph is good fans are blowing temp isnt too high.. what do you think?

???PIKS??? roots?

shock ,heat,under-watered,overwatered,start there.

lol