General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon
Brand: General Hydroponics
Color: Orange
Acid formulation uses food grade phosphoric acid
Add when your nutrient pH is too high in order to lower the pH to the proper level
Promotes pH stability
Adjust by adding a little at a time
Recommended pH for most plants is 5.5 to 6.5 pH