It would already suppose to turn black by now .... it turns a purple shade in the last 10 days. I would recommend using LST on this strain, it does wanders. But even if it does not turn purple or very dark you will love the smoke and a quite unique high that I could never compare to another...
Re: Post your "Creme de la Creme" of 420 pics here.
Bubba Kush AUTO - grown under 2X 55w CFL - and this is only a part of the main cola, had several other branches!
It sure looks like overwatering. You also have some magnesium deficit, lower your PH to 6.5 - that way they will feed properly.
Water every 3-4 days unit water comes down the holes of your pots.
Had the same problem a few days ago, did the same thing, took the PH down to 6.5 and I've seen massive improvement in just 1 day.
Fanleaf helped me, because your ph was to high the plants stopped eating & growing, and you start to see some nutrient problems - magnesium in your case and mine...
Ok, so 24h later after starting to use the 6.5 ph water the girls seem do to better, I even see some new growth!
So I learned from this that PH can really mess your relationship if it's not well balanced. This is my 3 grow but I never had the problem until now.
But, just to be safe I bought...