Dutch Pro pH Up Dutch Pro pH Up contains 30% Potassium Hydroxide and can be used in growth and bloom to raise the pH value of a nutrient solution. Potassium Hydroxide also provides a source of Potassium, which can be used by plants in bloom. When growing indoors, the pH value of nutrients fed to plants needs to be controlled. Plants are able to absorb nutrients more easily at a pH value of between 5.5 – 6.5. For plants to perform to their full potential pH will need to be monitored and adjusted at regular intervals (daily if possible). Adjust pH by adding a small amount of Dutch Pro pH Up to the nutrient solution, then recheck the pH value, repeat this until the pH reaches the value required Note – pH up and down can causes severe burns keep out of the reach of children. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice Wear suitable gloves and eye/face protection. pH Up and pH Down react violently if they come into contact with each other. Never mix them together. Use separate measuring equipment when adjusting pH values.