PH DOWN by Hy-Gen
PH DOWN by Hy-Gen
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PH DOWN by Hy-Gen


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PH DOWN by Hy-Gen – a solution containing 85% food-grade Orthophosphoric acid that effectively lowers the pH of your growing system. Here are important guidelines for using it:

  1. Nutrient Solution Preparation: Prior to adding PH DOWN by Hy-Gen, it is recommended to prepare your nutrient solution and allow it to equilibrate. The equilibration process can take up to 60 minutes, depending on the size of your tank.
  2. Proper Mixing: Always add the required amount of pH DOWN to a small separate container of water. Ensure thorough mixing to create a well-blended solution before adding it to your nutrient tank. This step helps prevent uneven pH distribution within the system.

By following these instructions, you can successfully utilize pH DOWN to lower the pH of your nutrient solution, creating an optimal environment for nutrient absorption by your plants.


  • Use pH DOWN every time your pH is too high.
  • Adjust the pH only after tap water or additives are added to your tank.
  • Once adjusted mix well and allow 30-60 minutes before re-testing and adjusting.
  • Always pre-dilute pH UP, pH DOWN, and any other product with water before adding to your tank.

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Every batch of finished products is quality tested to ensure that specific standards are met; therefore, every product has a guarantee of consistent quality. HY-GEN® products contain local and globally sourced high-grade quality ingredients. The ingredients include natural organic components that are carefully selected for their plant health promotion and nutrient transport characteristics. Analytical grade reagents are used in all instrument maintenance and care products. All ingredients are regularly screened to ensure that they meet the most stringent criteria. WHY CHOOSE HY-GEN®? When you choose a HY-GEN® product, you're choosing more than just a product. You're choosing peace of mind. We put in the effort to ensure that every product reflects our unwavering integrity, extensive knowledge, and decades of experience. Our goal is to provide you with the confidence and support you need, so you can concentrate on cultivating your beloved plants and become an experienced and skilled gardener.


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