I'd definitely stick with what I said before about giving the plant a break. Even if there's no merit in it I like to think that I've tried to keep my plants as healthy and happy as possible, and I see that plants perk up incredibly during the night. I have a tiny little one who really looked weedy, didn't think she'd ever make it past day 2 of existance. She lasted quite a bit longer she was drooping horribly and so I formulated a little special feeding for her with tiny amounts of nutes (literally tiny, 1/24th of the recommended dose, couldn't measure out any smaller with my current tools). As the day went by she stayed pretty limp to be honest, her leaves were starting to look like they were going to die and then the lights go out, I take a sleep and POOF! she's back and she's growing.
You could argue that the nutes just had a delayed response time but I personally believe that a break from everything helped her along the way every bit as much.