pH Up® & pH Down® are tank controllers that assist in reaching a desired pH level. The pH scale measures how acidic or basic (alkaline) a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic (alkaline).
Plants thrive in a pH range of 5.5 to 6.5. When preparing nutrients, or regularly monitoring your reservoir or tank, you should always check your pH levels to ensure that the pH stays within an acceptable range for your plants. When pH levels become too high, nutrients become non-bioavailable a phenomenon commonly referred to as ‘nutrient lock-out’. Accordingly, pH control using pH Up® & pH Down® is essential to ensure nutrients remain fully available for plant growth. Recommended for horticultural and agricultural uses.
Active Ingredient: Potassium hydroxide (raises pH while safely contributing potassium to the root zone instead of sodium).
How to Use
Test the Solution: Measure your reservoir or tank pH using a calibrated digital pH meter or test kit.
Dilute and Add: Dilute a small, measured amount of Nutrifield pH Up in a small container of water first, then pour it gradually into the main reservoir.
Mix & Retest: Turn on your reservoir circulation pump, allow the solution to mix thoroughly, and retest the pH. Repeat incrementally to avoid overshooting the target range.
Safety Precautions
• Caustic Formula: Concentrated potassium hydroxide can cause skin burns or eye damage; always wear gloves and eye protection.
• Never Mix Directly: Do not mix concentrated pH Up and pH Down liquids together directly outside of a diluted solution.
