it first started with a tiny blackish line on one branch. and now its growing all over the plant and its turned purple
Nute lock out? Please explain. Haha And I'm not really using any nutes. Just some superthrive as recommended.
Nutrient lockout is when nutrients can't be absorbed through the soil, and this is for a variety of reasons... you'd have to be very specific in your information about the grow for us to determine anything more. Also, you should consider using nutrients. That would help.
ive been told if its not affecting the plant growth wise like bud production has not slowed or new growth isnt affected then y worry