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Plants in hydroponic systems function best with a nutrient solution pH of between 5.8 up to 6.2.
Growth Technology pH DOWN contains orthophosphoric acid (H3PO4). The concentration is 30%, which is very strong so handle with care. Some other products on the market are considerably weaker so check the concentration before you buy. This is a very dense liquid and should feel much heavier than water.
Health & Safety:
This liquid needs safe and careful handling:
- Always wear gloves and eye protection when handling aggressive liquids
- Always store in locked cupboards
- KEEP AWAY FROM CHILDREN
- pH Up and pH DOWN should be diluted before use – ask for the Growth Technology leaflet on pH and Conductivity