Some beautiful looking ladies you got there. Fantastic work. Keep doing what your doing and may the ganja garden gods bless you with good fortunes the rest of the way.
@Chlorophyll_Junkie, I personally dont use a ph meter either since I mix in a solid bit of organics. Sometimes I do get weird growth like that and I chalk it up to ph issues but if the plants growing I never stress it too much.
@Denzul, i dont measure PH, because im working with Mychorizza, ive been told the Mychorizza will give them the right needs. i could buy a PH meter if that will fix the problem.
It depends when im watering them. most of the time i just lift them up to check the weight. or ill put my finger about 10 cm inside the soil to check how moisture it is.