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Vitalink – PH Up 1L


Vitalink – PH UP – 50% Potassium Hydroxide

Vitalink – PH UP – 50% Potassium Hydroxide is used for increasing the pH of your nutrient solution.

  • pH Up – increases the pH of your nutrient solution
  • Highly Concentrated – 50% Potassium Hydroxide
  • Potassium Hydroxide – one of the best and most stable pH Up adjusters
  • Corrosive – requires careful handling
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How Vitalink – PH UP – 50% Potassium Hydroxide works:

pH Up is a concentrated solution of Potassium Hydroxide that can be used to increase the pH of almost any liquid that it is added to. When growing plants in hydroponics or aeroponics, it is necessary to keep the pH of your nutrient solution within a certain range. Different plant species have different requirements but in general most plants like a pH range of 5.5 – 6.5. pH Up is added sparingly to nutrient solution to help keep the acidity within this range.

How to use pH Up

To grow plants successfully, particularly in hydroponics, it is necessary to monitor and adjust the pH of your nutrient solution on a regular basis. In general, plants grown in hydroponics like a pH of approximately between 5.5 and 6.5 (plant species dependent) with a little bit of variation within this range. This is because plants can only absorb certain nutrients at a pH close to 5.5 and others at a pH closer to 6.5. If your nutrient solution strays out of this optimum range for too long, your plants will not be able to absorb all the nutrients that they need and will become deficient, leading to slowed growth and eventually sickness. To avoid pH problems, and the plant problems that it can cause, it is wise to check and adjust the pH of your nutrient solution very regularly (every day if possible).

To use, take a small sample of your nutrient solution and measure the pH with a digital tester or liquid pH test kit. If the pH of your nutrient solution needs adjusting then draw off about half a litre of nutrient solution in a jug and add a small amount (depending on the size of your reservoir) of pH Up using a pipette. Mix very well. Add the contents of the jug back to reservoir in small stages, mixing the reservoir well and re-testing the pH in-between each addition until the desired pH is reached.


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