---
product_id: 397923759
title: "Api Pond Ph Down, 16 Oz"
brand: "api"
price: "£42.84"
currency: GBP
in_stock: true
category: "Api"
url: https://www.desertcart.co.uk/products/397923759-api-pond-ph-down-16-oz
store_origin: GB
region: United Kingdom
---

# Slow, steady pH adjustment Safe for fish & plants Precise pH control Api Pond Ph Down, 16 Oz

**Brand:** api
**Price:** £42.84
**Availability:** ✅ In Stock

## Summary

> 🌿 Keep your pond thriving with perfect pH balance!

## Quick Answers

- **What is this?** Api Pond Ph Down, 16 Oz by api
- **How much does it cost?** £42.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/397923759-api-pond-ph-down-16-oz)

## Best For

- api enthusiasts

## Why This Product

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

## Key Features

- • **Algae-Free Assurance:** Contains zero phosphates, so no unwanted algae growth
- • **Fish-Friendly Formula:** Non-toxic and safe for all pond inhabitants
- • **Trusted Quality from API:** Made in the USA with proven reliability and 4.4-star user approval
- • **Nutrient Boost for Plants:** Prevents alkaline buildup, enhancing nutrient absorption
- • **Balanced pH, Balanced Life:** Gently lowers pond pH to optimize aquatic health

## Overview

API Pond pH Down is a 16 oz liquid solution designed to safely and gradually lower the pH of pond water. It neutralizes alkaline substances that hinder nutrient uptake in aquatic plants, while being completely safe for fish and plants. Free from algae-promoting phosphates, this product ensures a healthy, balanced pond ecosystem.

## Description

Api Pond Ph Down, 16 Oz : desertcart.ae: Patio, Lawn & Garden

## Features

- Slowly lower the pH of your pond water to make it more acidic using API POND pH DOWN pH adjuster.
- This product slowly neutralizes alkaline substances that cause high pH, which limits the ability of aquatic plants to absorb necessary nutrients.
- POND pH DOWN pH adjuster is safe for pond fish and aquatic plants, and contains no algae-promoting phosphates.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001CL6QMM |
| Allergen Information | Beef Free |
| Best Sellers Rank | #22,225 in Pet Supplies ( See Top 100 in Pet Supplies ) #16 in Pond Care & Water Treatment |
| Brand Name | API |
| Country of Publication | USA |
| Customer Reviews | 4.4 4.4 out of 5 stars (518) |
| Global Trade Identification Number | 00317163161708 |
| Item Form | Liquid |
| Item Type Name | API POND pH DOWN, 16 OZ |
| Item Weight | 1.2 Pounds |
| Liquid Volume | 16 Fluid Ounces |
| Manufacturer | API |
| Manufacturer Part Number | 170B |
| Model Number | 170B |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 617407751550 317163161708 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** API
- **Item form:** Liquid
- **Item weight:** 1.2 Pounds
- **Liquid volume:** 16 Fluid Ounces
- **Number of Packs:** 1

## Images

![Api Pond Ph Down, 16 Oz - Image 1](https://m.media-amazon.com/images/I/51OXAWQdRRL.jpg)

## Questions & Answers

**Q: Is this good for African cichlids**
A: This can be used in aquariums or ponds.  But i am surprised you need to lower your pH for African Cichlids.  Of course this depends what your pH is but keep in mind that rift lake fish need a pH higher than neutral.

**Q: Is there any difference between this an their smaller bottles used with aquariums? Other than the amount?**
A: It is the same product. The amount you need depends on your tank size(s). Some people just have a small aquarium in their home while other people have 3000 gallons of fish tank. 😉

**Q: Why doesn't it say anywhere how much water a bottle of this can treat?**
A: A 160z bottle can treat 4730gallons of pond water.

**Q: what is the difference between the two products Ph down for ponds and ph down for aquariums? Are the ingredients and strength the same?**
A: The PH is dropped regardless where the body of water is. Pond, pool, aquarium,  fountain ask the same. Just pay attention to the correct dosing for the volume of water.

## Frequently Bought Together

- API POND pH DOWN Pond Water pH Reducing Solution 16-Ounce Bottle, White, Model:170B
- API POND pH UP Pond Water pH Raising Solution 16-Ounce Bottle
- API POND WIDE RANGE pH TEST KIT 160-Test Pond Water Test Kit

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**Shop now:** [https://www.desertcart.co.uk/products/397923759-api-pond-ph-down-16-oz](https://www.desertcart.co.uk/products/397923759-api-pond-ph-down-16-oz)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-21*