First CFL closet grow Some assistance needed

I nned help i have 4 sativas and one indaca. i water about every 4 days. and have fed one time and i diluted 1/4 tsp of MG into a gallon of water and then diluted it agian in a 20oz bottle for watering. shortly after my leaves started to droop and curl under. I am useing MG moisture cont mix. I also feed with superthrive. I dont know the PH i simply have some plants in closet under some CFL's with a fan and a timer.

I switched to 12/12 after a month of Veg and it has been about two weeks and i have started to get lateral branching but they have not showed sex is something wrong any help would be good. especially for the drooping leaves. In the pics the one i am worried about is in the clay pot.

theyll show sex, sometimes it takes longer than two weeks..you need more cfls and you need to keep them shits close. your plants are stretchy.