FoxFarm - Cultivation Nation PH Down Quart

Cultivation Nation® pH DOWN lowers the pH of nutrient solutions. An ideal pH range for growing plants is 5.6 – 6.8. Shake well before use.
Take a pH reading of the nutrient solution. Based on your pH reading, adjust the pH by adding small amounts of pH DOWN at a time, testing for pH again after each application. Continue until the desired pH is reached.

CAUTION:
Only add pH DOWN directly to water or nutrient solution. See product label for detailed precautionary and first aid information.