pH Down will adjust your solution to the desired pH level. Add a few drops of pH Down to your solution tank to raise/lower the pH level in the tank. Our pH solution is concentrated so adjust slightly before adding your final nutrients. After adding the nutrient materials, test your solution to determine if the exact level has been reached. It may be necessary to add a few more drops to reach the desired level.
**This item may qualify for extra shipping charges due to its weight.**
**Only availabe to ship within Canada**