probably the strain theres many diff colors in strains but if anything might be a minor nute def but nothing major continue what your doing its looking good enough to smoke i bet it taste like cherry or somthing.anyways i dont mean to criticize but the bottom portions of the plant looks strong enough to super crop them with hst high stress training will give you atleast a 1/2
ounce each node and most of the time more.i suggest you look into super crop lst and hst or topping its worth it.simply google in under images and obbserve