Since you don't have a diary for this grow, we have no information on which to base our advice... so all you're going to get here are guesses.... Droopy leaves usually indicate one of two things: overwatering or underwatering... if you're not letting the soil dry out between waterings/feedings, you are overwatering which is, again, the problem most people have.
Do yourself (and us) a favor and start a diary.... that way, if other problems/questions arise, we'll have pretty much all the information needed ...
Good luck!