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🌱 Master your grow with precision pH power — because your plants deserve the secret advantage!
Humboldts Secret pH Down is a 32-ounce concentrated phosphoric acid solution designed to quickly and effectively lower pH in soil, coco, and hydroponic systems. Engineered for professional growers, it optimizes nutrient uptake by maintaining an ideal pH range of 5.5 to 6.5, supports strong root development and abundant yields, and is up to 25% stronger than many competitors, ensuring efficient use with minimal product. Trusted for its purity and versatility, it’s the go-to pH adjuster for serious gardeners seeking consistent, vibrant growth.
| ASIN | B0BW3G96VV |
| Best Sellers Rank | #26,765 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #746 in Garden Fertilizers |
| Brand | Humboldts Secret |
| Brand Name | Humboldts Secret |
| Coverage | Medium |
| Customer Reviews | 4.6 out of 5 stars 481 Reviews |
| Item Form | Liquid |
| Item Highlight | Concentrated Phosphoric Acid Solution, Supports Nutrient Uptake, Soil, Coco & Hydroponics, Maintains 5.5-6.5 pH, Easy Feeding |
| Item Weight | 2.6 pounds |
| Liquid Volume | 32 fluid ounces |
| Manufacturer | HS Supplies, LLC |
| Mixing Ratio | a few drops per unit of nutrient solution |
| Model Number | HS-PH-DOWN |
| Number of Items | 1 |
| Number of Packs | 1 |
| Specific Uses For Product | Plant Growth |
| Target Species | plants |
| UPC | 706199757427 |
| Unit Count | 32 Fluid Ounces |
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