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Cultivation Nation pH DOWN lowers the pH of nutrient solutions. An ideal pH range for growing plants is 5.6 - 6.8. Shake well before use. Take a pH reading of the nutrient solution. Based on your pH reading, adjust the pH by adding small amounts of pH DOWN at a time, testing for pH again after each application. Continue until the desired pH is reached. Available in 16oz pint & 32oz quart containers
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🇺🇸 Ship from USA · On Agora since 2026
$14.99