Our pH Test indicator is perfect for easy testing. It covers a wide range, going from 4.0 to 8.5. Simply fill the test-tube halfway with nutrient solution, add 2 – 3 drops of pH Test Indicator, shake and observe the resulting color. Compare with our color chart to check your pH level
| Brand | GHE – TERRA AQUATICA |
|---|---|
| MPN | AGXFERGEHCPH9007 |
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