hi C.D.H yep im just using bloom and pk that all,iv not need to us any(cal/meg or any additives) @ all,im using ro water with abit of tap add too it,and then me feed,i veg till 5-6 week then stop,Kudo your giving her no N at all during bloom? Ive got a dark devil too, doing great at 1.0 EC. Might up it thought, ill take a pic shes a bit yellow.