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pH up will allow you to increase your pH as required.
Use a pH tester to gauge when you reach your desired pH level. Bluelab products are recommended as the best for this.
When first using this product use small amounts (i.e. one drop at a time) and test the pH after each time to gain an understanding on how it reacts to the water/nutrient formula. You do not want to raise the pH so high that you need pH down.
It is not recommended to use both pH Down and pH Up in the same solution as this will affect any pre buffered medium. Always take care when using this product, wear gloves and avoid contact with skin/eyes.
