luna, you should check the forum about the possible nute issue on the purple branches. I can't remember right now, but I know I have run across a few different threads which discuss that question.

Your girls look like they are stretching for the light. That greenhouse seems to really stretch the ladies out. Does that result in your bud sites getting more light, and developing bigger and better buds? I wonder what your WW harvest will yield?

I hope all is well with you.