HESI PH Plus is a product designed to raise the pH level of your nutrient solution if this falls below 5.5-6.5 (depending on development phase)
It is made ??from potassium hydroxide 50%, should be dosed with caution, if necessary dropwise while with a PH meter to control the level progress.
Caution: Product is corrosive, so we handle it with care, using gloves
