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How many tests can i do ? -joseph webb

The PH Indicator in this package is 30ml. Assuming a 1/2 ml "drop" is used for the test, it will net 60 tests. -Greners Staff

pH Control Kit


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Controlling the pH level in your grow media is a crucial element in growing healthy plants. When pH is at its optimal level, plants are better able to absorb nutrients.

This kit from General Hydroponics contains Ph Up (add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level), Ph Down (uses food grade Phosphoric acid to lower the pH to the proper level), and Ph Test Indicator (fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the test vial. Use 3 drops per 5mL of solution).


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