So your plants are truly happy, it is necessary that the pH level of the nutrient solution was slightly acidic; the ideal is between 5.5 and 6.5. Our fertilizers contain pH regulators elements that allow your solution to always remain stable. In practice, for several reasons, this stability is unfortunately not always assured: When water is not good when the media used have unstable pH, like some rock wool and clay beads And when the growth rate of the plant is such that the rapid absorption of food imbalance the nutrient solution Our pH Test Indicator is perfect for rapid tests. To know the pH level of your nutrient solution, fill half of the jar included in the kit and add 3 drops of this indicator. Compare the color obtained with those of the Charter provided for the purpose. You can make more than 200 tests per vial to an unbeatable price. Reliable, easy to use and cheap,
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