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🌿 Unlock your garden’s secret weapon for unstoppable growth!
Humboldts Secret pH Down is a highly concentrated liquid formula designed to quickly and precisely lower pH levels in soil, coco, and hydroponic systems. With up to 25% greater strength than competitors, it ensures optimal nutrient absorption by maintaining a pH range of 5.5 to 6.5, preventing deficiencies and promoting healthier, more productive plants. Made with pure phosphoric acid and no additives, this 8-ounce solution is trusted by growers for consistent, professional-grade results across all growing mediums.
| ASIN | B0DFN2JDB2 |
| Best Sellers Rank | #31,963 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #761 in Garden Fertilizers |
| Brand | Humboldts Secret |
| Coverage | Medium |
| Customer Reviews | 4.7 out of 5 stars 488 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 | 10.08 ounces |
| Liquid Volume | 8 fluid ounces |
| Manufacturer | Humboldts Secret |
| Model Number | pHDown8oz |
| Number of Items | 1 |
| Target Species | plants, trees, flowers, bushes, lawns |
| UPC | 850058984438 |
| Unit Count | 8 Fluid Ounces |
C**Y
Best ph down on the market
Great product. Similar strength to the general hydroponics ph down. But without the dye! I wouldnt use anything else.
T**D
Super effective price was great
Great product doesn't take much to get everything inline with Humboldt's amazing products
E**W
REGULATE YOUR H2O pH
Indispensable to regulate pH in tap water for gardens.
K**D
Good!!!
Good!!!
B**N
Great for tomatoes and peppers.
Been using it for years.
D**R
S
Great product, better then I thought
G**Y
Customer service
Great product. Customer service is top notch. Would highly recommend this vendor and product
D**O
My go-to
Lowered my PH just like it said it would.
Trustpilot
5 days ago
1 month ago