I used the coco for 2 years now, i can tell you it's the BEST stuff in the world..all my friends turn for coco after the see my results...This story of potassium is crap, wtf, where he hear that???
Also, the PH is 100% STABLE, it's come around 6 or 6.5 but after 2 or 3 times watering the coco...