Moisture stress? Cupping leaves.

so my oldest plant is drooping, a few leaves are cupping downward. Im confused to what it could be cause i thought i had my watering on point. Also im using foxfarm ocean forest with perlite in a 2 gallon fabric pot. Water ph is 6-6.8 filtered well water. All plants have been givin the same care but the big female is kinda reacting differently. Also using two 40w cfls and upgrading to a 300w led soon. Could this be overwatering? Not enough light for the plant? Any info will help, I can only assume its the darn nitrogen. Plant hasn't burned yet but she isn't super happy looking either. I haven't used any ferts yet! image.jpgimage.jpg image.jpg
 
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