It's the Bridge here Scotty, hows the engine room?....the engine rooms looking like its running at quite a high warp factor there
As far as nutrient line for soil, I used Plagrond previously (good with soil or coco - all organic) And now I use Bio Nova, also organic. But these girls don't look like they got any nute problems, far from it. Or are you not happy with the growth rate?
I would agree with Claptoman, perhaps a bit of the cold treatment on your girls to bring those purple hues out. McOne uses a 0 degrees celcius water flush, this shocks the plant into thinking the frost/colder weather is coming in so it a/ it starts to die, but before that, b/ it starts to suck up resin into the bud. this cold treatment may also help bring out the colour? But it looks like a grand job so far. So as a suggestion, 48 hours before the chop, switch the lights out and feed them freezing water. Then try and bring the temps down to below 20 c (75f) while they sit in the cold dark for the last 48 hours of life....... I don't think you will risk damaging the girls doing this either.
I was just thinking, when you have fresh cut flowers, if you put them in water with some food colouring, you will see the food colouring coming out in the petals of the flower...I wonder what the story would be with bud???
Here are your pics the right way round
Although saying that, I can see a tinge of purple in those buds already anyway. Good job china!!!
, DST