---
product_id: 71225598
title: "Fresh Water Master Test Kit, 1 Piece"
brand: "api"
price: "€ 98.90"
currency: EUR
in_stock: true
reviews_count: 13
category: "Api"
url: https://www.desertcart.nl/products/71225598-fresh-water-master-test-kit-1-piece
store_origin: NL
region: Netherlands
---

# Scientifically accurate results Measures 5 key water levels Quick multi-parameter testing Fresh Water Master Test Kit, 1 Piece

**Brand:** api
**Price:** € 98.90
**Availability:** ✅ In Stock

## Summary

> 🐠 Master your aquarium’s health with precision and speed!

## Quick Answers

- **What is this?** Fresh Water Master Test Kit, 1 Piece by api
- **How much does it cost?** € 98.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/71225598-fresh-water-master-test-kit-1-piece)

## 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

- • **User-Friendly Testing:** Simple color-matching system designed for quick interpretation, keeping your tank safe and vibrant.
- • **Scientifically Trusted:** Professional-grade accuracy ensures your aquarium thrives with optimal water conditions.
- • **Precision at Your Fingertips:** Get fast, reliable readings for pH, High Range pH, Ammonia, Nitrite & Nitrate — all in one kit.
- • **Trusted by Aquarists Worldwide:** Join thousands of aquarium enthusiasts who rely on API for consistent, dependable water testing.
- • **Comprehensive Water Health Check:** Monitor the 5 most critical water parameters to prevent fish stress and disease.

## Overview

The API Fresh Water Master Test Kit offers a professional-grade solution to monitor five essential water parameters—pH, High Range pH, Ammonia, Nitrite, and Nitrate—quickly and accurately. Designed for freshwater aquariums, this all-in-one kit empowers aquarists to maintain optimal water quality, ensuring a healthy environment for aquatic life.

## Description

API Fresh Water Master Test Kit, 1 Piece : desertcart.in: Pet Supplies

Review: Good 👍 - Good 👍 Work's Well
Review: Good tester - It's nice but expensive tool to establish your tank parameters. Which is sometimes confusing as decoding is based on visual color matching which turns out to be extremely confusing and tricky when you get different colours which are not in the reference color table...this forces you to do guesswork... So far for me its approximately 65% clear report and 35% guess report...shall use this till we get better kit than this... Note: I mostly use API products for my aquariums. Thanks

## Features

- Measures the most important aquarium levels quickly and accurately
- Tests pH, High Range pH, Ammonia, Nitrite & Nitrate
- Scientifically accurate for professional results

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000255NCI |
| Best Sellers Rank | #3,235 in Pet Supplies ( See Top 100 in Pet Supplies ) #11 in Test Kits |
| Country of Origin | USA |
| Item Dimensions LxWxH | 23.2 x 8.9 x 11.8 Centimeters |
| Item Weight | 522 g |
| Item model number | 34 |
| Manufacturer | MARS FISHCARE NORTH AMERICA .inc |
| Net Quantity | 1 Count |
| Product Dimensions | 23.2 x 8.9 x 11.8 cm; 521.63 g |

## Images

![Fresh Water Master Test Kit, 1 Piece - Image 1](https://m.media-amazon.com/images/I/61Kd-mEEjXL.jpg)

## Questions & Answers

**Q: How many tests can be run with this kit?**
A: About 120.   Problem is that if you use the full set of products daily you will quickly  run out of the ammonia test and the Nitrates tests (each with 2 bottles) because they take 8-10 drops each, compared to the Ph test which only takes 3 drops.  I mainly test ammonia and nitrites so I've had to buy separate ammonia kits twice now because I ran out of fluid, while my high range ph bottle is nearly full.    Also - Prime, AmGuard and other products convert Ammonia into harmless Ammonium however, it will still read as ammonia on your API kit - so it's basically lying to you.  There are kits that will show you active ammonia and harmless ammonium and my API kit reads 8.0 ammonia but the other kit reads it as all harmless ammonium and zero active ammonia.  You have do dose your tank with Prime every 48 hours or less to keep the ammonium from converting back to killer ammonia.  This will keep happening until your tank finally converts the ammonium to nitrites.  My 2 of my 4 well-cycled tanks somehow lost their cycling so that's not happening for those tanks yet.

**Q: I'm a newbie. I have a betta in 10G tank and I'm told that I need to test the water always.Not sure if I should get this or get cheaper ones instead.**
A: Frankly, with a 10G tank you should just be doing weekly water changes of at least 25-30%.  You can't really "let things go" with a tank that size and it's unlikely that you would have ammonia spikes with such frequent water changes.  I have a little 5.5 gallon with a couple of albino cory cats and I use a test strip every once in a blue moon, but the water is always fine because I do weekly changes.  Am looking at this kit for my 125 gallon tank, but would bother for a tiny tank.

**Q: Would this kit be a good one for my planted aquarium?**
A: Yes, this is a good general water testing kit, unless you have plants that are very sensitive to water hardness.  This kit does NOT include a water-hardness tester.

**Q: Can any of these tests be used for both saltwater and freshwater? I noticed a lot of the individually packaged tests say they can be used for both.**
A: Api ammonia, nitrite and nitrate test kits can be used for both salt and fresh water aquariums, the liquid solutions are the same for salt and fresh. BUT the color cards that you use to compare your test to are slightly different. I have both fresh water and marine. The first time I bought these kits, I bought for saltwater and freshwater and never threw away the color cards. Now it doesn't matter if I get freshwater or saltwater test kits because I have both freshwater and saltwater cards.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good 👍
*by S***B on 11 January 2026*

Good 👍 Work's Well

### ⭐⭐⭐⭐ Good tester
*by P***R on 17 June 2021*

It's nice but expensive tool to establish your tank parameters. Which is sometimes confusing as decoding is based on visual color matching which turns out to be extremely confusing and tricky when you get different colours which are not in the reference color table...this forces you to do guesswork... So far for me its approximately 65% clear report and 35% guess report...shall use this till we get better kit than this... Note: I mostly use API products for my aquariums. Thanks

### ⭐⭐⭐⭐⭐ Quick and accurate results. Must for your aquarium
*by A***C on 1 July 2020*

This product is excellent and provides very quick and accurate results. You just need to follow the instructions as per the manual and the test results will come quite accurate. The box includes: 1. Chemical reagents to perform all the tests mentioned - PH, High PH, Ammonia, Nitrite, Nitrate 2. 4 Test Tubes 3. Manual and Color chart The color chart is very helpful and the manual explains very clearly how to understand the results based on the color. The PH results come immediately. For Ammonia/Nitrite/Nitrate, you need to wait for 5 minutes. In a well cycled tank - Ammonia and Nitrite must be 0ppm(VERYImportant) and Nitrate also within acceptable limits. This is a must for any aquarium and specially useful for any new tank setups where you need to monitor the water conditions regularly during the cycling process. Based on the results, you can take decision for water changes. Best Master Test Kit available !!!! Go for it.

## Frequently Bought Together

- API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored
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- Tetra Water Cleaner Gravel Siphon for Aquariums, Easily Clean Freshwater Aquariums

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-18*