Advanced Nutrients pH Down 0-55-0 Concentrated pH Adjuster

Maintain a more favorable root-zone environment with Advanced Nutrients pH Down, a highly concentrated phosphoric-acid solution formulated to lower the pH of water and mixed plant nutrients. Precise pH adjustment helps keep essential elements available to roots and reduces the risk of nutrient lockout caused by an overly alkaline solution.

Advanced Nutrients pH Down provides stable, economical pH control for hydroponics, coco coir, sphagnum-based media, and container gardens. Because water alkalinity and nutrient recipes vary considerably, it should always be added gradually while testing—not applied at a predetermined dose.

Key Benefits:

• Quickly lowers high nutrient-solution pH
• Helps maintain conditions favorable for nutrient availability
• Highly concentrated formula requires only small adjustments
• Provides stable pH control between reservoir changes
• Suitable for hydroponics, coco coir, and container growing
• Compatible with DWC, NFT, aeroponics, drip irrigation, and flood-and-drain systems
• Can be used during vegetative growth or flowering whenever adjustment is required
• Compatible with Advanced Nutrients and other properly formulated nutrient programs

Guaranteed Analysis:

• Total Nitrogen: 0%
• Available Phosphate: 55%
• Soluble Potash: 0%
• N-P-K: 0-55-0
• Primary Ingredient: Phosphoric acid

The 0-55-0 analysis represents available phosphate and should not be interpreted as the exact percentage of phosphoric acid in the bottle.

How to Use:

Always mix base nutrients and supplements into fresh water before adjusting pH.

1. Mix the complete nutrient solution thoroughly.
2. Measure the solution using a calibrated pH meter.
3. If the pH is too high, add a very small amount of pH Down while stirring or circulating the reservoir.
4. Allow the solution to mix completely.
5. Test again and repeat only when necessary.

Manufacturer Target Ranges:

• Hydroponic Nutrient Solutions: pH 5.5–5.8
• Sphagnum-Based Media and Container Plants: pH 6.2–6.3

Always consider the requirements of the specific crop and growing medium. Check pH daily for best results. Prepare fresh reservoir solutions weekly, monitor coco-fed plants daily, and check other substrates several times per week as needed.

Using pH Down with Other Advanced Nutrients Products:

• Base Nutrients and Supplements: Mix every fertilizer and additive into water first, then measure and adjust the final solution.
• pH Perfect Nutrients: Allow the complete solution to stabilize before testing. Add pH Down only if an adjustment is actually required.
• pH Up: Never combine pH Up and pH Down directly or add both concentrates at the same time.
• pH Meters: Use a properly calibrated digital meter or reliable pH testing kit for every adjustment.
• Calibration Solutions: Calibrate and maintain electronic meters according to the meter manufacturer’s instructions.

Safety Information:

DANGER: Concentrated phosphoric acid is corrosive and can cause severe skin burns and eye damage.

• Read the product label and Safety Data Sheet before use.
• Wear chemical-resistant gloves, protective clothing, and appropriate eye or face protection.
• Work in a well-ventilated area and avoid breathing mist or spray.
• Always add pH Down to water or a diluted nutrient solution. Never add water directly to the concentrate.
• Never combine with pH Up, alkaline concentrates, or undiluted fertilizers.
• Keep tightly closed in its original container and store upright in a cool, dry, ventilated area.
• Keep locked up and out of reach of children and pets.
• Not for use as food or animal feed.