Hydrofarm – PH Down (500ml)
PH Down (500ml) – Hydrofarm
PH Down serves to reduce the pH of the nutrient solution.
How to use PH Down:
– Use a PH meter first to measure the pH of the nutrient solution
– If it is greater than the desired Ppm, add PH Down solution gradually. Then stir well.
– measure the PH again in the nutrient solution
– Repeat until you get the desired Ppm.