---
product_id: 540996662
title: "API Pond Water Test Kit (500-Test) and Pond Cleaner with Natural Bacteria and Barley"
brand: "api"
price: "$237"
currency: NZD
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.nz/products/540996662-api-pond-water-test-kit-500-test-and-pond-cleaner
store_origin: NZ
region: New Zealand
---

# Natural bacteria & barley formula 500+ precise water tests 4 key water parameters monitored API Pond Water Test Kit (500-Test) and Pond Cleaner with Natural Bacteria and Barley

**Brand:** api
**Price:** $237
**Availability:** ✅ In Stock

## Summary

> 🌊 Keep your pond pristine and your fish thriving — don’t let sludge steal your zen!

## Quick Answers

- **What is this?** API Pond Water Test Kit (500-Test) and Pond Cleaner with Natural Bacteria and Barley by api
- **How much does it cost?** $237 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/540996662-api-pond-water-test-kit-500-test-and-pond-cleaner)

## 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

- • **Trusted API Quality:** Backed by nearly 60 years of expertise, ensuring reliable, professional-grade pond care solutions.
- • **User-Friendly Design:** Includes color charts, test tubes, and easy-to-follow instructions for stress-free water quality management.
- • **Proactive Pond Health:** Regular testing and treatment prevent pump clogging and maintain crystal-clear water all season long.
- • **Natural Sludge Destroyer:** Harnesses powerful natural bacteria and barley to break down fish waste and algae, reducing pond maintenance effortlessly.
- • **Comprehensive 500-Test Kit:** Monitor pH, ammonia, nitrite & phosphate with lab-grade accuracy to protect your aquatic ecosystem.

## Overview

The API Pond Water Test Kit (500-Test) combines a high-precision testing system for pH, ammonia, nitrite, and phosphate with a natural bacteria and barley-based sludge destroyer. Designed for ornamental ponds, it enables over 500 accurate water quality tests and reduces organic buildup to maintain a healthy, clear aquatic environment. Trusted by professionals and hobbyists alike, this kit simplifies pond maintenance while protecting fish health and preventing costly equipment clogs.

## Description

API POND MASTER TEST KIT Pond Water Test Kit 500-TestProduct Highlight(s): A complete kit for testing tap water pond water. Tests water for pH, ammonia, nitrite phoshorous levels. Features 4 test tubes, instruction book, color cards, a holding tray for testing bottles and test tube rack.A complete kit for testing tap water pond water. Tests water 4 different ways to protect fish from dangerous water conditions. Tests include: pH, ammonia, nitrite and phosphate. Kit contains instruction book, improved color cards for easier reading, 4 test tubes and holding tray.API POND-ZYME SLUDGE DESTROYER Pond Cleaner With Natural Pond Bacteria And Barley, 1-Pound ContainerAPI POND-ZYME SLUDGE DESTROYER Pond Water Cleaner with Barley reduces build-up of fish waste and consumes pond sludge, which is typically a build-up of organic matter that degrades water quality and clogs pumps and filters. POND-ZYME SLUDGE DESTROYER uses natural bacteria and barley as active ingredients to break down algae and fish waste, digest leaves and grass clippings, and reduce overall pond maintenance for the season. This product is exclusively for use in ornamental ponds. Use as directed, dosing twice a week for two weeks at the beginning of the spring start-up season and at the end of the season, and dosing once every two weeks for regular maintenance. With API POND products, it’s easy to keep a beautiful pond. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. They work to provide a safe, hospitable environment for fish such as koi, catfish, perch, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too.

Review: The best freshwater basic testing kit... - You will find this freshwater kit is far more accurate than test strips. The soaking of a tiny doped pad method of test strips just isnt an accurate way to test. This is the industry standard water test kit that most aquarists swear by. 1st, be sure the test chemicals you get are not near expiration. You should easily be able to use this kit for up to a few years before the chemicals included lose their effectiveness. The expiration date is on the kit box and on each bottle of solution. The glass test tubes that used to be included in this kit have been replaced by plastic ones. The glass tubes made cleaning up a breeze and were far better than the plastic ones that don't clean up as well. Also the 5ml fill line is a bit difficult to see on the plastic tubes. It was always inevitable though that you would eventually break a few glass tubes before you got through the 800 tests this kit can provide. They now just assume that by the time the plastic tubes get permanently stained, you'll be on to a new test kit with new tubes. While not a deal breaker, I prefered the glass tubes. Be sure you purchase the kit best suited for the tanks or ponds you keep. This kit is the freshwater version. This kit tests pH in two different ways. If you have ph generally higher than 7.4 you use the high pH test solution. If you have pH below 7.6 youll use the standard pH test kit. This is great of you are keeping multiple tanks with different pH levels or if your one tank tends to bounce around between 7.4 to 7.6. Once you figure out which test best suits your aquariums, youll likely not use the other solution. This kit tests for total ammonia using 2 solutions in one test. Ammonia is a very hazardous chemical to your fish and plants. Use this kit to keep these levels of ammonia at or near 0. This kit tests Nitrites using 1 solution. This is the second step in the nitrogen cycle. While not as harmful as ammonia, it's still something you should strive to get as close to 0 as possible. Now some people using heavily planted and fertilized tanks will actually strive to have this level low but present. This kit tests for nitrates in two solutions for 1 test. While nitrates are not as harmful to fish as Ammonia or Nitrite, most fish keepers still strive for low readings. Long term exposures to high nitrates can still cause harm to fish. Generally youll get rid of nitrates by water changes or heavy plant growth. Many people with heavily planted and fertilized tanks prefer this value to be a little higher to feed the plants but still low to protect the fish. With this test kit testing 4 of your most important chemicals in fresh water, it is a necessity to have on hand. Test strips might be more convenient but are seldom very accurate. This liquid master test kit is the standard if you want true values at an affordable price. It comes in several varieties, depending on whether you have freshwater, marine, reef or ponds. Its a great way to see what is going on in your setup before any loss of life occurs.
Review: Works well - This product was great. Lasted a decent amount of time until I had an ammonia issue in my tank.

## Features

- Contains API Pond Master Test Kit (500-Test) to monitor pH, ammonia, nitrite and phosphate levels and API Pond-Zyme Sludge Destroyer with natural bacteria and barley to reduce sludge buildup (1 lb container)
- Pond Master Test Kit includes 6 test bottles, color charts and glass test tubes to perform over 500 tests to check pond water quality
- Sludge Destroyer uses natural active ingredients to break down fish waste and dead algae to keep ponds clean
- Test kit measures key water parameters weekly or when fish problems appear to maintain ideal pond environment
- Apply Sludge Destroyer regularly to reduce overall pond maintenance and prevent pump/filter clogging

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CBCMMWPV |
| ASIN  | B0CBCMMWPV |
| Best Sellers Rank | #21,573 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #218 in Pond Equipment |
| Brand Name | API |
| Care Instructions | Water |
| Customer Reviews | 4.7 4.7 out of 5 stars (39,438) |
| Date First Available | July 7, 2023 |
| Date First Available  | July 7, 2023 |
| Directions | 1. Set up the test kit following the instructions provided. 2. Collect water samples and perform tests using the provided materials. 3. Interpret test results using the color charts. 4. Apply the sludge destroyer regularly to reduce sludge and maintain pond health. 5. Monitor water parameters and adjust usage as needed. |
| Manufacturer | API |
| Manufacturer  | API |
| Material | natural bacteria and barley |
| Style | Pond + Cleaner |

## Product Details

- **Brand:** API
- **Ph Range:** 0-14
- **Recommended Uses For Product:** Water
- **Manufacturer:** API
- **Material:** natural bacteria and barley

## Images

![API Pond Water Test Kit (500-Test) and Pond Cleaner with Natural Bacteria and Barley - Image 1](https://m.media-amazon.com/images/I/5160ydz0faL.jpg)
![API Pond Water Test Kit (500-Test) and Pond Cleaner with Natural Bacteria and Barley - Image 2](https://m.media-amazon.com/images/I/71g0av4uoYL.jpg)
![API Pond Water Test Kit (500-Test) and Pond Cleaner with Natural Bacteria and Barley - Image 3](https://m.media-amazon.com/images/I/71pSdyIV3OL.jpg)
![API Pond Water Test Kit (500-Test) and Pond Cleaner with Natural Bacteria and Barley - Image 4](https://m.media-amazon.com/images/I/81P3wccS3hL.jpg)
![API Pond Water Test Kit (500-Test) and Pond Cleaner with Natural Bacteria and Barley - Image 5](https://m.media-amazon.com/images/I/81wHhSg8o0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ The best freshwater basic testing kit...
*by D***Y on June 7, 2024*

You will find this freshwater kit is far more accurate than test strips. The soaking of a tiny doped pad method of test strips just isnt an accurate way to test. This is the industry standard water test kit that most aquarists swear by. 1st, be sure the test chemicals you get are not near expiration. You should easily be able to use this kit for up to a few years before the chemicals included lose their effectiveness. The expiration date is on the kit box and on each bottle of solution. The glass test tubes that used to be included in this kit have been replaced by plastic ones. The glass tubes made cleaning up a breeze and were far better than the plastic ones that don't clean up as well. Also the 5ml fill line is a bit difficult to see on the plastic tubes. It was always inevitable though that you would eventually break a few glass tubes before you got through the 800 tests this kit can provide. They now just assume that by the time the plastic tubes get permanently stained, you'll be on to a new test kit with new tubes. While not a deal breaker, I prefered the glass tubes. Be sure you purchase the kit best suited for the tanks or ponds you keep. This kit is the freshwater version. This kit tests pH in two different ways. If you have ph generally higher than 7.4 you use the high pH test solution. If you have pH below 7.6 youll use the standard pH test kit. This is great of you are keeping multiple tanks with different pH levels or if your one tank tends to bounce around between 7.4 to 7.6. Once you figure out which test best suits your aquariums, youll likely not use the other solution. This kit tests for total ammonia using 2 solutions in one test. Ammonia is a very hazardous chemical to your fish and plants. Use this kit to keep these levels of ammonia at or near 0. This kit tests Nitrites using 1 solution. This is the second step in the nitrogen cycle. While not as harmful as ammonia, it's still something you should strive to get as close to 0 as possible. Now some people using heavily planted and fertilized tanks will actually strive to have this level low but present. This kit tests for nitrates in two solutions for 1 test. While nitrates are not as harmful to fish as Ammonia or Nitrite, most fish keepers still strive for low readings. Long term exposures to high nitrates can still cause harm to fish. Generally youll get rid of nitrates by water changes or heavy plant growth. Many people with heavily planted and fertilized tanks prefer this value to be a little higher to feed the plants but still low to protect the fish. With this test kit testing 4 of your most important chemicals in fresh water, it is a necessity to have on hand. Test strips might be more convenient but are seldom very accurate. This liquid master test kit is the standard if you want true values at an affordable price. It comes in several varieties, depending on whether you have freshwater, marine, reef or ponds. Its a great way to see what is going on in your setup before any loss of life occurs.

### ⭐⭐⭐⭐⭐ Works well
*by A***T on January 13, 2026*

This product was great. Lasted a decent amount of time until I had an ammonia issue in my tank.

### ⭐⭐⭐⭐⭐ Clear Results and Simple Instructions
*by E***Z on December 31, 2025*

Very easy to use and informative, especially for first-time aquarium owners. Instructions are clear, results are easy to read, and it takes the guesswork out of water testing.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-06*