Advanced Nutrients’ own pH Down is a professional, pharmaceutical grade version of phosphoric acid that immediately lowers hydroponics pH without harming the plants. pH Down is not only a price-friendly pH regulator, but also helps plants to better absorb nutrients with this pure formula. pH Down is to be used if your pH is reading above 6.3.

• Decreases levels of pH in your plants
• Helps plants better absorb nutrients
• Cost-effective option