The pH should be tested after adding Nutrients as Nutrients can change the pH of the water. A high PH can reduce the availability of iron, manganese, boron, copper, zinc and phosphorous in plants. A low PH can reduce the availability of potassium, sulphur, calcium, magnesium and phosphorus.
Cannabis, Hydroponics
T.A. pH Test Kits
R100.00
ThisTerra Aquatic pH Test Kit consists of a test tube for taking a sample, a reagent liquid to add to the test tube and a colour chart showing the pH between 4.0 and 8.5, against which the colour of liquid in the test tube is matched.
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