---
product_id: 1627375
title: "API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count"
brand: "api"
price: "A$88"
currency: AUD
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.com.au/products/1627375-api-reef-master-test-kit-reef-aquarium-water-test-kit
store_origin: AU
region: Australia
---

# 7 solution bottles included Accurate color-coded results 4 vital reef water tests API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count

**Brand:** api
**Price:** A$88
**Availability:** ✅ In Stock

## Summary

> 🌊 Master your reef’s health like a pro — don’t let your corals miss out!

## Quick Answers

- **What is this?** API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count by api
- **How much does it cost?** A$88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/1627375-api-reef-master-test-kit-reef-aquarium-water-test-kit)

## 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

- • **Complete Testing Kit:** Includes 7 solution bottles, 4 test tubes with caps, and 2 color cards for easy, reliable readings.
- • **Prevent Costly Fish Loss:** Detect invisible water issues early to protect your reef’s delicate ecosystem.
- • **Precision Reef Monitoring:** Track Calcium, Carbonate Hardness, Phosphate & Nitrate with lab-grade accuracy.
- • **Tailored for Reef Aquariums:** Specifically designed to maintain optimal conditions for corals, shrimp, and invertebrates.
- • **Trusted by 39,000+ Aquarists:** Industry-standard kit with 4.7-star rating ensures confidence and peace of mind.

## Overview

The API REEF MASTER TEST KIT is a professional-grade water testing solution designed exclusively for reef aquariums. It accurately measures four critical parameters—Calcium, Carbonate Hardness, Phosphate, and Nitrate—using 7 included reagent bottles, 4 test tubes, and color comparison cards. Trusted by over 39,000 aquarists with a 4.7-star rating, this kit helps prevent fish loss and algae blooms by enabling weekly monitoring and early detection of water quality issues, ensuring a thriving, vibrant reef environment.

## Description

Measure the most important reef aquarium levels including calcium, carbonate hardness (KH), phosphate and nitrate with API REEF MASTER TEST KIT. Proper balance is key to the overall health of reef inhabitants. Corals and reef invertebrates like shrimp, crabs and encrusting algae require calcium to grow and proper levels of carbonate hardness to prevent harmful fluctuations in pH. Excess phosphate, which comes from fish waste, uneaten food and other decaying organic matter as well as tap water, can cause algae blooms and affect healthy growth of hard corals. High nitrate levels from fish waste and organic compounds can cause fish disease and algae blooms. The API REEF MASTER TEST KIT comes with four different tests that are specifically calibrated to measure these levels in reef aquariums. Just fill the test tubes, add the test drops and compare results to the color card. Then follow the recommendations on the card if action is required. With API aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. 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 tropical community fish, cichlids, 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: Good kit! - Works perfectly was hesitant on spending more rather than getting test strips but I’m glad I invested in this kit way more accurate and comes with good amount!

## Features

- Contains one (1) API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count, including 7 bottle of testing solution, 2 color cards and 4 test tubes with cap
- Helps prevent invisible water problems that can be harmful to fish and cause fish loss
- Accurately monitors 4 most vital water parameters levels in reef aquariums: Calcium, carbonate water hardness, phosphate and nitrate
- Designed for use in reef aquariums only
- Use for weekly monitoring and when water or fish problems appear

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.7 out of 5 stars 39,537 Reviews |

## Images

![API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count - Image 1](https://m.media-amazon.com/images/I/71pA4OBzuXL.jpg)

## Available Options

This product comes in different **Style** options.

## 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.

### ⭐⭐⭐⭐⭐ Good kit!
*by A***A on January 28, 2026*

Works perfectly was hesitant on spending more rather than getting test strips but I’m glad I invested in this kit way more accurate and comes with good amount!

### ⭐⭐⭐⭐⭐ Must have saves time and energy
*by D***E on February 17, 2026*

Saves me so many trips to the pet store. Super easy to use, easy to clean. Directions are very clear. A must have for anyone with even 1 tank. It's worth the $, you will use it a LOT before you need to replace the drops. I've had 6 tanks at once over 2 years and still had 1/2 my drops.

## Frequently Bought Together

- API Reef Aquarium Master Test Kit, multicolor, 14 Count (Pack of 1)
- Seachem Ammonia Alert, Aquarium Test Colour Changing Indicator
- Seachem Prime 100 Ml, Tap Water Conditioner For Fresh & Salt Aquarium

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-27*