I just transplanted some clones and had the same problem. I used this stuff:
And it worked wonders. Like in 6 hours there was a big differnece. You can totally tell. Maybe get something like it. Its called Vita Grow Anti Wilt. Check my grow log to see..
r they curling upwards or downwards,,,, if the tips are curling down then its a slight overnute...if the whole leaf is droopy then it was be under or overwatered...