Too much light?

I had done some posting of my grow in another forum and was advised to reduce my lighting. I had been using 4 35w 6400k cfls and 1 90w tri band ufo LED. I had some problems with my young babies with yellowing, necrotic tips, and drooping. I turned off all lights except 1 of the cfls. I also added some technaflora magi-cal to my distilled water. The girls perked right back up the next day, no more droop, the color getting darker and some fresh upward growth. I am wondering if the recovery was due to light reduction or the magi-cal? Opinions please?
These were taken before the chnge in light and magi-cal.
These are the day after the light change etc.