API Freshwater Master Test Kit Review: Test pH, pH ammonia, Nitrate, Water Hardness

Is the API Freshwater Master Test Kit good for the job?

Learning about the parameters of water in your aquarium is essential to keep your aquatic animals in excellent condition.

You need to test the water frequently to make sure that the bacteria are doing a good job, breaking the fish’s waste into safe components that won’t harm the inhabitants of the tank.

This is why you need a reliable testing kit like the API Freshwater Master Test Kit.

In this review, we’ll explain the kit’s job, what it does, and how it can help you monitor the quality of the water.

API Freshwater Master Test Kit Overview

API Freshwater Aquarium Master Test Kit

  • Designed to measure, modify and balance the conditions of freshwater aquariums
  • Measures freshwater pH, high range pH ammonia, nitrate, and water hardness
  • Includes 4 test tubes, a holding tray for testing bottles, and a test tube rack
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API Saltwater Aquarium Master Test Kit

  • Over 550 tests so you can perform your routine aquarium maintenance
  • Tests high range pH, ammonia, nitrite, and nitrate levels
  • Comes with 6 bottles of liquid test reagent, 4 glass test tubes with snap-tight caps, a holding tray, and instruction booklet
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API Reef Aquarium Master Test Kit

  • 4 different tests calibrated specifically for reef aquariums
  • Measures calcium, carbonate hardness, phosphate and nitrate
  • 4 test tubes, a tray and easy-to-read color card for clear results
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The first time you decided to keep fish, you probably didn’t know anything about the water quality in your fish tank.

However, things aren’t that simple when you’re keeping a big aquarium with multiple fish, plants, fish tank driftwood, and other aquatic animals that share a closed ecosystem.

best freshwater fish tank testing kit

The API Freshwater Master Test Kit is a reliable testing kit that allows you to track any changes in the water.

It shows the levels of different chemicals, so you can take the most appropriate action.

api freshwater master test kit color chart pdfPros:

  • Affordable testing kit
  • Designed to test 5 crucial parameters
  • Arrives with all the needed chemicals
  • No preparation required
  • Detailed instructions
  • The reference chart is easy to understand


  • Doesn’t work with saltwater aquariums
  • You might run out of some of the chemicals before you run out of others

Low water quality can cause stress and illness. It might even kill some of your fish and other aquatic animals.

You need to keep an eye on the water quality and monitor all the visible and invisible changes that directly impact the inhabitants of your aquarium. This is a 5-in- 1 testing kit that allows you to do that.

It’s only suitable for testing freshwater aquariums, but there is the API Saltwater Master Test Kit or the API Reef Master Test Kit for those aquarium set-ups.

Comprehensive Testing

For an affordable price, this testing kit will allow you to test all the crucial parameters that affect the life of the animals and plants in your tank.

The test arrives with 7 fluids that contain various chemicals to test the chemicals in the water.

It also arrives with 4 different mixing tubes with their caps as most of the tests require shaking and mixing the chemicals to achieve the correct result.

All of the test tubes arrive in a sturdy container that keeps all your tubes together.

Moreover, you can use this container while waiting for the results to appear, as you compare them to the provided chart.

Using this testing kit, you can assess the PH level and high PH range of your tank, in addition to the ammonia, nitrites, and nitrates.

As a result, you can use it when you’re first cycling the water, or when you want to keep track of the changes in the water.

Easy To Use

The testing kit is quite easy to use and understand.

The labeled bottles tell you about the chemicals to use and what they do, so you can easily mix them to check the results.

There’s a chart that explains all the steps that you need to follow while testing for different parameters.

After you’ve mixed the correct chemicals and waited for the recommended period, you can easily check the results against the provided chart.

The color chart is very easy to understand and is waterproof, so you can keep it to test the water later on.

Every parameter has different instructions, so you need to be accurate while following the steps. However, all the bottles are numbered, and the steps are detailed, so you won’t struggle to get the results right.

Effective Results

You don’t have to repeat the test twice to make sure that water is safe for your fish.

This testing kit is accurate, fast, and reliable, so you can depend on the results you’re getting. You can use the testing kit, even if you have no previous experience with chemicals or using testing kits.

The PH test can be used for 250 tests, while the high PH range can be used for 160 tests.

You just need a few drops of the water and the chemicals provided to test the parameters.

This guarantees that your testing kit will be a good value for money.

API Freshwater Testing Kit

If you’re looking for a reliable and affordable freshwater testing kit, you should look no further.

This test is straightforward to use and understand, so you can easily check the water quality to make sure that your fish and other aquatic animals are perfectly healthy and safe.

Here’s how to lower the pH in your aquarium if you discover that issue with your test, or consider these best fish tank vacuums if your tank needs a good clean!

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