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Humboldts Secret pH Up and pH Down Control Kit | Liquid Nutrient Solution Balancer for Plants | For Soil, Hydroponic, Coco, and DWC Systems |
ANG 102
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Achieve maximum nutrient absorption and increased plant production with Humboldts Secret pH Up and pH Down.
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Product Details
- Humboldts Secret pH Up and pH Down are designed to help gardeners fine-tune the pH of plant nutrient solutions for consistent nutrient availability and steady plant development. Maintaining a balanced pH range, commonly preferred between 5.5 and 6.5 for many plants, supports efficient nutrient uptake and overall plant performance. pH Up uses potassium hydroxide to gradually raise pH levels, while pH Down uses phosphoric acid to gently lower them, giving growers precise control with a clean, dye-free formula. Because the solutions are highly concentrated, only small adjustments are needed after testing with a digital pH meter or test strips, making each bottle long lasting and easy to use. This pH control kit is suitable for a wide range of growing methods including soil, coco coir, water-based systems, hydroponic setups, and DWC environments, making it a versatile addition to indoor and outdoor gardens. Humboldts Secret pH Up and pH Down are intended for plant nutrient solutions only and are not designed for aquariums or spas. Developed by gardeners with hands-on growing experience, these products are made with carefully selected ingredients and produced in a California-based facility to support consistent results across different plant types and growing stages.
| Fertilizer type | Synthetic |
| Form | Liquid |
| Rec. use | Flower, Herb, Garden, Shrub, Plant, Tree, Vegetable, Fruit |
| Brand | Humboldts Secret Supplies |
| Rec location | Indoor |
| Size | 32 Ounce (Set of 2) |
| Net content statement | 32 Ounce |
| Weight | 4 lb (1.81 kg) |
| Product net content parent | 32 Ounces |
| Product net content uom | Ounce |
| Pack quantity | 2 |
Product Description
Dietary Supplement Disclaimer
Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
Customer Questions & Answers
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Question:
Can I use pH Up and Down for aquariums?
Answer: No, these products are specifically designed for plant nutrient solutions only. -
Question:
How do I know how much pH Up or Down to use?
Answer: Test your nutrient solution with a pH meter or strips and use small drops to adjust as needed. -
Question:
Will this product work in hydroponic setups?
Answer: Yes, it is suitable for hydroponic systems as well as various other growing mediums.
Humboldts Secret Supplies Liquid Fertilizer Editorial Review
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ANG 102
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Features & Benefits
- Balanced pH solutions optimize nutrient absorption for higher plant yields.
- pH Up and pH Down are 25% stronger than competitors—less is more.
- Ideal pH range for most plants is 5.5 to 6.5.
- Compatible with all growing mediums: soil, hydroponics, and more.
- Formulated by experienced gardeners for reliable, consistent results.
- Dye-free formula ensures clean adjustments to your nutrient solution.
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