Primary ( K ) or secondary nutrient ( Ca-Mg ) deficiency?

a bit too much nutrients, she is looking really healthy minus the lack of cal mag. so you were right on the spot, so heres what you need to do, flush, get a run off of 6.0ph reading. next let the pot dry out for a day or two. when you feed start with a little less nutrients in your mix, and yes add some cal mag. you should see a nice improvement after. hope this helps. keep up the great grow