---
product_id: 585419456
title: "pH Down for Plants | Liquid pH Adjuster and Balancer for Soil Coco Hydroponics | Concentrated Phosphoric Acid Solution Supporting Nutrient Uptake and Strong Growth | 32 Ounce"
brand: "humboldts secret"
price: "22.82 OMR"
currency: OMR
in_stock: true
url: https://www.desertcart.com.om/products/585419456-ph-down-for-plants-liquid-ph-adjuster-and-balancer-soil
store_origin: OM
region: Oman
---

# 25% stronger concentration Optimal pH 5.5-6.5 for nutrient uptake Versatile for soil, coco & hydroponics pH Down for Plants | Liquid pH Adjuster and Balancer for Soil Coco Hydroponics | Concentrated Phosphoric Acid Solution Supporting Nutrient Uptake and Strong Growth | 32 Ounce

**Brand:** humboldts secret
**Price:** 22.82 OMR
**Availability:** ✅ In Stock

## Summary

> 🌿 Master your grow with precision pH power!

## Quick Answers

- **What is this?** pH Down for Plants | Liquid pH Adjuster and Balancer for Soil Coco Hydroponics | Concentrated Phosphoric Acid Solution Supporting Nutrient Uptake and Strong Growth | 32 Ounce by humboldts secret
- **How much does it cost?** 22.82 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/585419456-ph-down-for-plants-liquid-ph-adjuster-and-balancer-soil)

## Best For

- humboldts secret enthusiasts

## Why This Product

- Trusted humboldts secret brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid pH Balancing ⚡:** Quickly adjusts pH to ideal range, preventing nutrient lockout and boosting plant vitality.
- • **Precision Growth Support 🌱:** Maintains perfect pH for vegetables, flowers, and herbs, ensuring lush foliage and abundant harvests.
- • **Ultra-Concentrated Formula 💧:** Small doses deliver powerful, lasting effects—up to 25% stronger than competitors, saving time and money.
- • **Pure & Professional Quality 🏆:** Made in California with high-grade phosphoric acid, no additives—trusted by expert growers worldwide.
- • **Universal Medium Compatibility 🌿:** Seamlessly works with soil, coco coir, DWC, NFT, and other hydroponic systems for year-round growth.

## Overview

Humboldts Secret pH Down is a 32-ounce concentrated phosphoric acid solution designed to rapidly and precisely lower pH in soil, coco, and hydroponic systems. Its ultra-concentrated formula is up to 25% stronger than competitors, ensuring optimal nutrient uptake by maintaining pH between 5.5 and 6.5. Suitable for all growing mediums, it supports healthier roots, vibrant foliage, and increased yields without additives, proudly crafted in California for professional-grade results.

## Description

Humboldts Secret pH Down is the trusted choice for growers who want complete control, consistency, and professional level results in every crop. Designed by growers for growers, our commercial grade formula is made with high quality phosphoric acid and contains no dyes or additives so nothing unwanted comes in contact with your plants. Whether you are cultivating vegetables, herbs, or flowers, maintaining the correct pH level is essential for nutrient absorption and plant vitality. This product works seamlessly as part of your regular pH adjust process, helping you prevent nutrient lockout and keep your plants thriving from the earliest stage through harvest. Our concentrated formula means you use less product for the same effect which makes it a smart investment that saves both time and money. It is not only about bringing the pH down, it is about creating an environment where your pH nutrients remain fully available to your plants which results in stronger roots, healthier foliage, and more abundant blooms. Suitable for soil, coco, and water based systems, Humboldts Secret pH Down integrates easily with any hydroponics solution or feeding schedule, delivering precise and measurable results every time. If you use a hydroponic solution for your growing system, maintaining a consistent and optimal pH is critical and this product provides the stability required to avoid problems caused by pH swings. Whether you need to pH lower slightly for delicate seedlings or make more significant adjustments in a mature grow, our formula works quickly and effectively without harming beneficial microbes or delicate plant tissue. Growers in deep water culture, nutrient film technique, aeroponics, and traditional soil gardens trust Humboldts Secret for reliable performance season after season. Each drop is designed for maximum efficiency so you can be confident your plants are getting exactly what they need to reach their full potential.

## Features

- Balance Your Grow Medium Fast: Our Humboldts Secret pH Down quickly and effectively lower pH in soil or coco to the optimal range for nutrient absorption. Prevents deficiencies and keeps plants stress-free while creating the right foundation for strong roots lush foliage and abundant harvests.
- Fuel Stronger Healthier Growth: Maintain precise plant pH balance between 5.5 and 6.5 to prevent nutrient lockout and maximize vitality. Works for vegetables flowers and herbs in any medium helping your garden thrive from seedling to full production with consistent vibrant growth.
- Highly Concentrated and Efficient: Just a small amount of our hydroponic pH down makes powerful lasting adjustments saving you time and money. Up to 25% stronger than some competitors this commercial grade formula ensures reliable results with minimal product use.
- Versatile for All Growing Methods: Use Humboldts Secret pH Down in soil hydroponic systems like DWC and NFT coco coir or other grow mediums. Works seamlessly with your nutrient solution to support balanced feeding healthy stems and increased yields year round.
- Expert Made Quality You Can Trust: Designed by growers for growers our concentrated pH down for plants uses high grade phosphoric acid and contains no dyes or additives. Proudly manufactured in California it delivers professional level results for every type of garden.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 12.7 x 5.08 x 19.05 cm; 1.16 kg |
| Manufacturer | HS Supplies, LLC |
| Item model number | HS-PH-DOWN |
| ASIN | B0BW3G96VV |

## Product Details

- **Brand:** Humboldts Secret
- **Item form:** Liquid
- **Liquid volume:** 32 Fluid Ounces
- **Specific uses for product:** Plant Growth
- **Manufacturer:** HS Supplies, LLC

## Images

![pH Down for Plants | Liquid pH Adjuster and Balancer for Soil Coco Hydroponics | Concentrated Phosphoric Acid Solution Supporting Nutrient Uptake and Strong Growth | 32 Ounce - Image 1](https://m.media-amazon.com/images/I/61fdm2mWMZL.jpg)

## Frequently Bought Together

- Humboldts Secret pH Down | Liquid pH Plant Balancer for Soil & Hydroponics Growing System
- Humboldts Secret Tree Trunk - Silicate Additive - Advanced Nutrients - Helps Plants Flourish - Indoor Plant Food - Hydroponic Nutrients - Liquid Fertilizer (32 Ounce)
- Humboldts Secret Sweet & Sticky – Carbohydrate and Saccharide Energy Source – Enhance Aroma and Flavor of Plants – Potting Soil for Indoor Plants – Energy for Plants – 32 Ounces

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**Shop now:** [https://www.desertcart.com.om/products/585419456-ph-down-for-plants-liquid-ph-adjuster-and-balancer-soil](https://www.desertcart.com.om/products/585419456-ph-down-for-plants-liquid-ph-adjuster-and-balancer-soil)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-01-25*