FOOP pH Up and Down are pH adjusters made from 90%+ pure potash (potassium hydroxide) (Up), and food grade phosphoric acid (Down) that correct pH imbalances, maximize nutrient absorption, and prevent sickly plants. Crucial for vigorous plant growth, FOOP pH Up and Down achieve optimal pH levels to produce larger, healthier plants.

What it Does: FOOP pH Up and Down control nutrient solution pH to encourage nutrient absorption. By balancing pH to the optimal 6.0 – 6.5 range, plants can efficiently absorb the optimal amount of nutrients they need to stay healthy. This optimal level of nutrient absorption allows plants to grow vigorously and prevents them from falling ill. All this means your plants will thrive with vigor for larger, better, stronger harvests.