Looking good glykogen . IMO i think you could get away with another week or two of veg, but then again idk how much that plant is gunna stretch.
This will be a good show
i would have switched to 12/12 a week ago. doesnt look like 18cm is a lot of room. my eyeballs say its about 6 inches, i dont have a ruler to look at right now. but even in 12/12 the plant is going to keep growing until it is fully matured you could have started on 12/12 and it would still get to however big it would have been when the flowers started. in my experience its 4 weeks give or take a few days so it would be as big as it is now and would be stopping the stretch. you will have to control the stretch for about another 2 weeks. i wish you luck and hope 18cm is enough. if not then just keep topping, it will cause it to stretch a little extra but you will have more budsites at the end when the stretch is over.
She's doing very well. and not much of a stretch yet.
i'm still using the veg fertilizer scheme and switching to the flower fertilizer scheme by end of week.