These plants flower when the the time of sunlight during the day shortens up. keep them like that and when your ready to switch to flower than go 12/12. Don't stress them even more trying to change the light cycle again.
I bought these nutes from home depot (schultz 10-15-10) and you can use them outside. It gives all the directions you need and it was only 5 or 6 bucks. My plants love it!
I plan on starting the build tomorrow and will have pics throughout the whole build. Stay tuned to see if i can make it work!
Plus rep for both of you for the comments!