Best Aquarium Test Kits – Reviews And Buyer’s Guide

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Aquarium test kits are important for any fish keeper, as they help you maintain water quality and keep your fish healthy. There are many different kinds of test kits available, and it can be difficult to know which one is best for your tank.

In this guide, we’ll go over some of the things you should consider when choosing an aquarium test kit, and review five of the best products on the market. These products have been chosen for their accuracy, ease of use, and value.

Comparison Table of the 5 Best Aquarium Test Kits

IMAGE

API 5-in-1 Test Strips

BRAND

API 5-in-1 Test Strips

DETAILS

  • Brand: API
  • Item Dimensions LxWxH: 3.5 x 1.75 x 6.5 inches
  • Item Weight: 0.2 Pounds
API Freshwater Master Test Kit

BRAND

API Freshwater Master Test Kit

DETAILS

  • Brand: API
  • Item Weight: 1.15 pounds
  • Item Dimensions LxWxH: 9.13 x 3.5 x 4.63 inches
SaySummer 7-Way Aquarium Test Strips

BRAND

SaySummer 7-Way Aquarium Test Strips

DETAILS

  • Brand: SaySummer
  • Item Dimensions LxWxH: 4.37 x 1.85 x 1.38 inches
  • Item Weight: 1.76 pounds
Red Sea Fish Pharm ARE21525 Marine Care Test Kit for Aquarium

BRAND

Red Sea Fish Pharm ARE21525 Marine Care Test Kit for Aquarium

DETAILS

  • Brand: SaySummer
  • Item Dimensions LxWxH: 4.37 x 1.85 x 1.38 inches
  • Item Weight: 1.76 pounds
Tetra EasyStrips Complete Aquarium Test Kit

BRAND

Tetra EasyStrips Complete Aquarium Test Kit

DETAILS

  • Brand: Tetra
  • Item Dimensions LxWxH: 6 x 4 x 1.13 inches
  • Item Weight: 0.317 ounces

What Is An Aquarium Test Kit?

An aquarium test kit is a tool that helps you to test the water quality in your tank. It usually consists of a few different tests, such as ammonia, nitrite, nitrate, and pH. Test kits may also include tests for other parameters, such as phosphate and dissolved oxygen.

There are two main types of aquarium test kits: liquid and strip. Liquid test kits are more accurate, but they can be difficult to use. Strip test kits are easier to use, but they are not as accurate.

Why Do You Need An Aquarium Test Kit?

So, why do you need an aquarium test kit? Let’s take a look at a few reasons:

shot of water test kit

Maintaining Water Quality

One of the most important reasons to test your water quality is to ensure that it is safe for your fish. Uneaten food, waste, and decaying plants can all contribute to poor water quality, which can, in turn, lead to elevated levels of nitrates, ammonia, and other toxins.

When water chemistry is out of balance, it can cause stress in fish, and make them more susceptible to disease. By regularly testing your water quality, you can catch small problems before they become big ones.

Monitor Nitrogen Cycling

If you are setting up a new tank, monitoring the water quality during the cycling process is important. This is when beneficial bacteria are establishing themselves in the filter, and the levels of ammonia and nitrites are high.

By testing the water during this time, you can make sure that the cycling process is proceeding as it should, and avoid any problems down the road. For instance, if ammonia levels are not decreasing, it could be a sign that the filter is not working properly.

Keeping Sensitive Fish Safe

Some fish are more sensitive to changes in water quality than others. For instance, bettas are very sensitive to ammonia, and even small amounts can be harmful to them. Meanwhile, saltwater fish are very sensitive to changes in pH levels in their fish tank – even a small change can cause them stress.

Juvenile betta swimming in aquarium

If you have sensitive fish, it is especially important to test your water quality regularly. The average fish keeper should test their water quality at least once a week. However, if you have sensitive fish, you may need to test more frequently. Assess your fish’s behavior, and if you notice any changes, test the water right away.

Ensure Suitability Of Water Source

With such a wide variety of different fish species available, it is important to make sure that the water you are using is suitable for the fish you are keeping. For instance, African Cichlids prefer hard water with a high pH, while Neon Tetras prefer soft water with a lower pH.

Therefore, the water composition in your area will play a big role in what kind of fish you can keep. It is always good to test basic water parameters, such as pH, hardness, and alkalinity, before adding any fish to your tank. This will help you avoid any problems down the road.

If you are determined to keep a certain fish species, you may need to use a water conditioner to change the water parameters to suit their needs. For instance, a regular chlorine/chloramine remover will not lower the hardness of your water. However, there are products available that will change the hardness and pH of your water to suit the needs of your fish.

What to Consider When Choosing an Aquarium Test Kit

Now that we’ve gone over some of the reasons why you need an aquarium test kit, let’s take a look at some of the things you should consider when choosing one.

Number of Water Parameters Tested

The first thing you need to consider is how many water parameters the kit tests for. The three most important water parameters to test for are:

  • Ammonia levels
  • Nitrate levels, and
  • pH levels

However, there are other water parameters that you may want to test for, depending on the fish you are keeping. For instance, saltwater test kits will also test for alkalinity, magnesium, and calcium levels. On the other hand, if you are keeping plants in your aquarium, you may want to test for phosphate levels.

A simple test kit that only tests for ammonia, nitrates, and pH levels is usually sufficient for the average fish keeper. However, if you are keeping sensitive fish or plants, you may want to invest in a more comprehensive test kit. What’s more important is ensuring that your test kit adheres to industry standards, which brings us to our next point –

Accuracy

It may seem like a given, but you need to make sure that your test kit is accurate. Accurate tests are essential for maintaining a healthy aquarium. Unfortunately, not all test kits are created equal. In fact, some test kits on the market are notorious for providing outright false readings.

In terms of accuracy, you really do get what you pay for. Cheap test kits that you can find at your local pet store are often inaccurate. These may work for periodic testing if you have a large aquarium, but if you have a small aquarium or sensitive fish, you need to be able to trust your test results.

test strips

A much better way to approach aquarium testing is to focus on precise measurements. Liquid test kits that use a syringe to draw out a water sample are usually more accurate than test strips. This is because test strips often rely on a chemical reaction that can be affected by several factors, such as the temperature of the water.

On the other hand, liquid test kits usually provide more accurate results because they are not affected by these factors. Instead, they provide a direct measurement of the water parameter in question.

Ease of Use

Another important thing to consider is how easy the test kit is to use. While accuracy is important, it won’t matter if you can’t figure out how to use the test kit. Generally speaking, strip test kits are much easier to use than liquid test kits. All you have to do is dip the strip in the water and compare the results to the chart included in the kit.

On the other hand, Liquid test kits can be a lot harder to use compared to a strip-style test. Though both involve a color comparison chart, liquid test kits require you to take a water sample using a syringe and then add the reagents. Fiddling with glass vials and bottles of testing solutions can be frustrating, especially if you’re trying to test for a lot of different water parameters.

On the other hand, some hobbyists find the ambiguity of strip tests frustrating. They are unsure as to whether or not the color chart should be read in direct sunlight or under artificial light. Manufacturers often neglect to mention this, leading to confusion and inconsistent results.

Price

Male hand showing Cost Effective text in business card.

Last but not least, you need to consider the price of the test kit. Aquarium test kits can range from $10 to $100, depending on the brand, the number of essential parameters it tests, and the total number of complete tests a single kit can conduct.

Some test kits can test multiple water parameters with a single kit. For example, the API Freshwater Master Aquarium Water Test Kit, often considered the gold standard in aquarium test kits, can test for ammonia, nitrates, nitrites, pH, and high range pH.

On the other hand, some hobbyists have basic ammonia test strips or a nitrite test kit. These tests for a single water parameter aren’t as comprehensive as the more expensive options. Remember that you don’t need to break the bank to get a quality aquarium test kit. 

5 Best Aquarium Test Kits – Reviews

Now that we have a better idea of what to look for in aquarium test kits, let’s look at five of our top picks!

1. API 5-in-1 Test Strips

API 5-in-1 Test Strips
  • Brand: API
  • Item Dimensions LxWxH: 3.5 x 1.75 x 6.5 inches
  • Item Weight: 0.2 Pounds

We’re kicking this list off with something that’s intuitive and easy to use. The API 5-in-1 test strips are a great option for those looking for an all-in-one testing solution. Convenience is key here as you’ll be able to test for five different water parameters – pH, nitrite, nitrate, general hardness, and carbonate hardness – with just one strip. Though ammonia is not tested for, it’s still a great way to keep an eye on the overall health of your tank.

Unlike test kits that require vials and liquid solutions, these strips provide results in just seconds. Simply dip the strip into your aquarium water and remove it after a few seconds. Swirl the strip in the water to ensure even coverage and then compare the strip’s color to the provided chart. This chart will tell you what range your water parameters fall into, so you can make the necessary adjustments.

Keeping in mind these strips is that they are not as accurate as other testing methods. If you’re looking for pinpoint accuracy, you may want to consider another option on this list. Additionally, you will need to invest in a separate ammonia test kit, because these are often considered to be one of the most basic tests you should run on a tank.

PROS

  • Easy to use
  • All-in-one testing solution for basic parameters
  • Fast results

CONS

  • Not as accurate as other methods
  • Does not test for ammonia

2. API Freshwater Master Test Kit

API Freshwater Master Test Kit
  • Brand: API
  • Item Weight: 1.15 pounds
  • Item Dimensions LxWxH: 9.13 x 3.5 x 4.63 inches

API appears on this list more than once, and for a good reason! API test kits have a reputation for being one of the most trusted in the aquarium industry, and its products never disappoint. The Freshwater Master Test Kit is a great option for those looking for a comprehensive test kit that will meet all their needs

This water test kit comes with everything you need to test for pH, high-range pH, ammonia, nitrite levels, and nitrate. These are the 5 water parameters that you’ll want to keep a close eye on, as they are the most likely to fluctuate. Investing in a kit that tests for all these parameters may also save you money in the long run, as you won’t have to invest in individual test kits for different testing parameters.

Many aquarists appreciate the fact that this kit uses liquid solutions rather than strips. This provides a higher level of accuracy, which is important when trying to maintain a healthy aquarium. However, it should be noted that this kit requires the use of vials, which some people may find difficult to work with.

PROS

  • All-inclusive testing solution
  • Comes with instruction booklet
  • Uses liquid solutions for higher accuracy

CONS

  • Requires the use of vials

3. SaySummer 7-Way Aquarium Test Strips

SaySummer 7-Way Aquarium Test Strips
  • Brand: SaySummer
  • Item Dimensions LxWxH: 4.37 x 1.85 x 1.38 inches
  • Item Weight: 1.76 pounds

Looking for something that gives you the convenience of testing strips, with the range of a liquid testing kit? SaySummer’s 7-Way Aquarium Test Strips may be just what you’re looking for. With these strips, you’ll be able to test for pH, chlorine, total hardness, ammonia, nitrite, nitrate, and carbonate hardness.

One thing that sets these strips apart from other options on the market is that they’re designed for both freshwater and saltwater tanks. This makes them a great option for those who have multiple aquariums or are thinking about switching from one to the other.

Another thing to love about these strips is that they provide results in just seconds. Simply dip the strip into your tank water and wait for the color to change. Then, compare the strip to the included color card to determine your water parameters.

PROS

  • Tests for a wide range of water parameters
  • Designed for both freshwater and saltwater tanks
  • Provides results in just seconds

CONS

  • Not as accurate as liquid testing

4. Red Sea Fish Pharm ARE21525 Marine Care Test Kit for Aquarium

Red Sea Fish Pharm ARE21525 Marine Care Test Kit for Aquarium
  • Brand: SaySummer
  • Item Dimensions LxWxH: 4.37 x 1.85 x 1.38 inches
  • Item Weight: 1.76 pounds

Very few test kits are formulated specifically for reef tanks, which makes the Red Sea Fish Pharm ARE21525 Marine Care Test Kit unique. This kit has everything you need to test for pH, ammonia, nitrite, nitrate, and alkalinity levels. These are the 5 most important water parameters to test for in a marine aquarium, particularly if it is home to sensitive corals.

Obtaining an accurate reading is of utmost importance when testing marine tanks, as even slight changes in water parameters can drastically affect the health of your fish. The Red Sea Fish Pharm ARE21525 Marine Care Test Kit uses liquid solutions rather than strips. This provides the highest level of accuracy possible. In addition, the durability of the included testing vials makes this kit a great investment.

One potential drawback of this kit is that it is one of the more expensive options on the market. Compared to other test kits for saltwater tanks, it also takes a little more time to get results with this one. However, many marine aquarium hobbyists feel that the price is worth it for the level of accuracy provided. You can’t put a price on peace of mind, after all.

PROS

  • Formulated specifically for marine tanks
  • Tests for the 5 most important water parameters in marine aquariums
  • Uses liquid solutions for accurate measurement
  • Includes durable testing vials

CONS

  • More expensive than other options
  • Takes a little longer to get results

5. Tetra EasyStrips Complete Aquarium Test Kit

Tetra EasyStrips Complete Aquarium Test Kit
  • Brand: Tetra
  • Item Dimensions LxWxH: 6 x 4 x 1.13 inches
  • Item Weight: 0.317 ounces

We’re rounding out our list with another strips-based test kit, the Tetra EasyStrips Complete Aquarium Test Kit. This kit includes 25 strips, and tests for ammonia, nitrates, nitrites, water hardness, chlorine, alkalinity, and pH levels. Frankly speaking, this is about as comprehensive of a test strip as you will find on the market.

To use these strips, simply dip them in your tank water and wait for the color to change. Then, compare the strip to the included chart to determine your water parameters. We like this kit because it comes with an instruction booklet that walks you through each step of the testing process. This is great for beginners who are just starting to get the hang of testing their tanks.

Another thing to keep in mind is that this one is not as accurate as liquid testing like most test strip kits. However, it is much more affordable and easier to use than liquid testing. If you’re on a budget, this test kit will allow you to test your freshwater tank fairly regularly without burning a hole in your pocket. 

PROS

  • Tests for 7 water parameters
  • Comes with an instruction booklet
  • Affordable
  • Easy to use

CONS

  • Not as accurate as liquid testing

Final Thoughts

We hope this article has helped you narrow down the best aquarium test kit for your needs. As we’ve discussed, there are a few different things to keep in mind when deciding. These include the number of water parameters tested, accuracy, ease of use, and price. By considering all of these factors, you should have no problem choosing the best aquarium test kit for your tank.

Did you find this article helpful? Check out our other articles on aquariums, fish care, and more! As always, feel free to contact us with any questions or comments. We’re happy to help!

Wanda is a second-generation aquarist from the sunny tropics of Malaysia. She has been helping her father with his freshwater tanks since she was a toddler, and has fallen in love with the hobby ever since. A perpetual nomad, Wanda does her best to integrate fish-keeping with her lifestyle, and has taken care of fish in three different continents. She loves how it provides a nice break from the hustle and bustle of life.

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