jumpincactus
Member
If I were you I would get your Ph up around 5.8 to 6.0. That is the best range for coco, that is what your in correct? Try that Ph range for a week or so and see if that helps. Your Ph at 5.5 is locking out Ca & Mg and you are close to locking out Mo molybdenum. Here is a link for a Ph chart for soiless and coco http://www.growweedeasy.com/ph#hydroponic-soilless-pH