---
product_id: 1627375
title: "API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count"
brand: "api"
price: "301.46 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.tn/products/1627375-api-reef-master-test-kit-reef-aquarium-water-test-kit
store_origin: TN
region: Tunisia
---

# 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:** 301.46 DT
**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?** 301.46 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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: Good product. - Good product.
Review: great test kit for saltwater tanks - this is the second kit I have bought from this manufacture, was very happy with first one and still am with the second. it is very simple to use with simple instructions, the readings are accurate . we use this for out 125 gallon tank with fish, live rock, and corals. always ships quick and at a good price that beats the stores.

## 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 |
|---------------|-------|
| ASIN | B001D6Z7QW |
| ASIN  | B001D6Z7QW |
| Best Sellers Rank | #1,268 in Pet Supplies ( See Top 100 in Pet Supplies ) #2 in Aquarium Test Kits |
| Brand Name | API |
| Color | Catnip |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,865) |
| Date First Available | July 25, 2005 |
| Date First Available  | July 25, 2005 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | Follow the instructional booklet directions for individual testing of each water parameter, and test weekly for best results. |
| Included Components | all |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 7 x 5.75 x 4.75 inches |
| Item Package Dimensions L x W x H | 6.61 x 5.16 x 4.41 inches |
| Item Weight | 1.1 Pounds |
| Item model number | 402M |
| Item model number  | 402M |
| Manufacturer | Mars Fishcare |
| Manufacturer  | Mars Fishcare |
| Manufacturer recommended age  | 1 month and up |
| Material | Plastic |
| Model Name | REEF MASTER TEST KIT |
| Number of Items | 12 |
| Product Dimensions  | 7 x 5.75 x 4.75 inches; 1.1 Pounds |
| Size | Pack of 1 |
| Style | Reef |
| Target Audience Keyword | fish |

## Images

![API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count - Image 1](https://m.media-amazon.com/images/I/71pA4OBzuXL.jpg)
![API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count - Image 2](https://m.media-amazon.com/images/I/71IdFe1BDCL.jpg)
![API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count - Image 3](https://m.media-amazon.com/images/I/41gxL1OR8SL.jpg)
![API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count - Image 4](https://m.media-amazon.com/images/I/71VZ9LAOtoL.jpg)
![API REEF MASTER TEST KIT Reef Aquarium Water Test Kit 1-Count - Image 5](https://m.media-amazon.com/images/I/81GhX8zKa5L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product.
*by A***2 on October 26, 2025*

Good product.

### ⭐⭐⭐⭐⭐ great test kit for saltwater tanks
*by A***Y on August 20, 2015*

this is the second kit I have bought from this manufacture, was very happy with first one and still am with the second. it is very simple to use with simple instructions, the readings are accurate . we use this for out 125 gallon tank with fish, live rock, and corals. always ships quick and at a good price that beats the stores.

### ⭐⭐⭐⭐⭐ Works great!!
*by K***R on August 6, 2025*

Works great, my husband uses this for his saltwater tank at least once a week!

## 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 Tunisia*
*Store origin: TN*
*Last updated: 2026-03-24*