Quote Originally Posted by Italiano715
So, when your plants droop are they during the on or off cycle and how long into it does start to droop. I know you said 11pm every night, but is your lights still on and how much longer?

The yellow can almost be sure it's a nitrogen deficiency considering the edges are not burnt on your leaves. Increase the Nitrogen and see how that goes. I can ALMOST guarantee that is the yellowing problem.
I know someone would ask this question, sorry I didn't include this in the original form.