---
product_id: 380656122
title: "Cultivation Nation PH Down - 1 Qt."
brand: "fox farm"
price: "$428727"
currency: COP
in_stock: true
reviews_count: 5
category: "Fox Farm"
url: https://www.desertcart.co/products/380656122-cultivation-nation-ph-down-1-qt
store_origin: CO
region: Colombia
---

# Optimized for hydroponic and standard garden setups 1 Quart size for long-lasting use Citric acid-based formula for rapid pH adjustment Cultivation Nation PH Down - 1 Qt.

**Brand:** fox farm
**Price:** $428727
**Availability:** ✅ In Stock

## Summary

> 🌿 Master your garden’s pH game with Fox Farm’s precision power!

## Quick Answers

- **What is this?** Cultivation Nation PH Down - 1 Qt. by fox farm
- **How much does it cost?** $428727 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/380656122-cultivation-nation-ph-down-1-qt)

## Best For

- fox farm enthusiasts

## Why This Product

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

## Key Features

- • **Easy Application:** A little goes a long way, making dosing simple and efficient
- • **Trusted by Growers:** Preferred choice for professionals managing acidity in diverse setups
- • **Precision pH Control:** Quickly lowers pH to ideal levels for optimal plant health
- • **Hydroponic-Ready Formula:** Specifically designed to stabilize pH in hydroponic systems
- • **Long-Lasting 1 Quart Supply:** Generous volume ensures extended use without frequent repurchasing

## Overview

Fox Farm Cultivation Nation PH Down is a citric acid-based pH adjuster in a convenient 1-quart size, engineered for rapid and precise acidity control in hydroponic and standard gardening systems. Ideal for quick pH corrections, it ensures healthier plant growth by maintaining optimal nutrient availability.

## Description

B08KWPB8KR

Review: I’ve been using Fox Farm pH Down to manage the acidity in my hydroponic garden, and a little truly goes a long way. It’s especially effective for quick adjustments when you’re working with standard setups. However, if you’re using tap water or have an organic system (I use bacillus along with some other beneficials for root rot), this might not be your best bet. The product’s effectiveness tends to wane faster under these conditions. The reason? It’s primarily citric acid-based, which organisms can metabolize quickly. This means it loses its pH-lowering power sooner than you might expect, leading to potential fluctuations in your system. For more stable pH control in organic setups, consider switching to a phosphorus-based pH down. This type will generally maintain its effects longer, keeping your garden’s acidity levels more consistent.
Review: I use this in my hydroponic system everytime I feel it because my ph is super high where I live. It works amazing at dropping it to the perfect ph level. Lasts a long time. And has only impacted my plants in a good way

## Features

- Foxfarm Cultivation Nation PH Down

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08KWPB8KR |
| Item model number | 5039072 |
| Manufacturer | Fox Farm |
| Package Dimensions | 22.61 x 8.31 x 8.31 cm; 907.18 g |

## Product Details

- **Brand:** Fox Farm
- **Item form:** Liquid
- **Item weight:** 32 Ounces
- **Liquid volume:** 1
- **Specific uses for product:** Hydroponic

## Images

![Cultivation Nation PH Down - 1 Qt. - Image 1](https://m.media-amazon.com/images/I/71tq2-s34WL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 10 July 2024*

I’ve been using Fox Farm pH Down to manage the acidity in my hydroponic garden, and a little truly goes a long way. It’s especially effective for quick adjustments when you’re working with standard setups. However, if you’re using tap water or have an organic system (I use bacillus along with some other beneficials for root rot), this might not be your best bet. The product’s effectiveness tends to wane faster under these conditions. The reason? It’s primarily citric acid-based, which organisms can metabolize quickly. This means it loses its pH-lowering power sooner than you might expect, leading to potential fluctuations in your system. For more stable pH control in organic setups, consider switching to a phosphorus-based pH down. This type will generally maintain its effects longer, keeping your garden’s acidity levels more consistent.

### ⭐⭐⭐⭐⭐ Review
*by A***E on 29 May 2025*

I use this in my hydroponic system everytime I feel it because my ph is super high where I live. It works amazing at dropping it to the perfect ph level. Lasts a long time. And has only impacted my plants in a good way

### ⭐⭐⭐⭐⭐ Review
*by J***N on 4 March 2025*

Fox Farm hands down makes the best grow products out there. This stuff is so potent. My tap water comes out around 7-8 ph, and I want 6. I have a 6L hydro system and only need 1/8th of a tsp of this, which actually brings it down to 4 ph. I thought my PH tester was broken so I bought a new one, and it gave the same readings.

## Frequently Bought Together

- FoxFarm Cultivation Nation pH Down - Liquid Nutrient Solution Adjuster for Hydroponic & Soil Gardens, Lowers pH Levels - 40% Citric Acid for Optimal Plant Growth (Quart)
- FoxFarm Cultivation Nation pH Up - Liquid Nutrient Solution Adjuster, Raises pH Levels for Hydroponic & Soil Gardens - Formulated with Potassium Hydroxide for Optimal Growth (Quart)
- FoxFarm Fertilizer Soil Trio Liquid Nutrient: Tiger Bloom, Grow Big, Big Bloom Bottles - (Pack of 3-1 Pint)

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-01-24*