if anything you just shocked them and I would replace the timer and go back to 12/12. it might set you back like a week, but should not affect the out come at all.
they need at least 18 hrs light but mine are about the same stage and they are on 20 on 4 off. the bottom fan leaves that are the original clone will yellow and die as they do pinch then off. i use for nutes 12-10-10. organic blood meal 12% and alaskan mega bloom which is 0-10-10. hope this...