The Best Nitrate Test Kits for 2021


What are the best nitrate test kits? It can be overwhelming to find a wide range of selection of these products because each of them is unique. For one, some items can check for just one parameter, such as chlorine level or pH level. On the other hand, there are those that can help you measure for other chemicals, such as ammonia, and other things like water hardness.

For help, you can check out the following sections for the top items in the category; each is with their strengths and weaknesses as well as special qualities. If you’re ready, let us begin and help you pick the right test kit later.

What is the Best Nitrate Test Kit for 2021

Top 6 Best Nitrate Test Kits Reviews

1. API Nitrate Test Kits


If you’re looking for an aquarium test kit that can be used for freshwater and saltwater, you might want to check out this kit. The API NITRATE 90 is ideal for either a tank type, so it can be very useful for marine and freshwater tank keepers.

The API NITRATE 90-T is what you need if you want an effective reading to check for any issues that might harm the plants and fish in the tank. This test kit is one of the most chosen ones for its ease of use even if you are not an expert in the process.

I would also like to mention that it comes with complete accessories including the two color cards that help you interpret what the results showed. In addition, this product is able to detect high levels of nitrate between 0 and 160 ppm.


  • Versatile for use in either freshwater or saltwater tanks
  • Comes with complete accessories including two bottles of solutions
  • Can detect nitrate levels up to 160 ppm
  • Can be used weekly to detect problems
  • Can prevent invisible issues in the tank


  • Can be hard to read the results if you have poor eyesight

2. API Master Test Kits for Freshwater & Saltwater


If you’re shopping around for a versatile test kit for your tank, you should take a look at the API Master Test Kits. It is one of the best around when it comes to performance because it can be used for reef aquariums, saltwater and freshwater. You can also use it for a pond if needed.

One of its best features is that it can help in monitoring the water quality, ensuring happy tank friends all the time. As it can help preventing tank water problem, you will also have peace of mind that you won’t see dead fish floating due to undetected issues. Speaking of that, this test kit will also be able to check for any invisible issues in your tank.


  • Can be used weekly or when an issue arises
  • Ideal for detecting any invisible problems that might pose harm to your fish
  • Easy to use even by beginners
  • Can help in monitoring water quality
  • Affordable and effective testing kit


  • Fragile glass test tubes

3. Tetra EasyStrips 6-in-1 Aquarium Test Strips


These Tetra EasyStrips 6-in-1 Aquarium Test Strips are some of the easiest to use for saltwater and freshwater tanks. It is versatile and easy to use that you don’t need to be an expert in the process. The easy strips will help keep your tank friends happy and healthy it can detect issues in the tank.

This item will help you figure out any critical level of harmful elements like nitrate in your tank. Buying this item, you will find six different tests with one strip. It works by monitoring the nitrate level as well as chlorine, pH levels and alkalinity.

You can also save money if you have a freshwater or saltwater tank because these strips can be used for any of these tanks. It can also show quick results within one minute. It is also ideal for use weekly to prevent any issues from arising due to invisible issues that might harm your fish.


  • Can be used for freshwater and saltwater tanks
  • Complete testing kit
  • Can also check water hardness, pH levels and alkalinity
  • Already comes with 100 strips
  • Can show results in one minute


  • Some shipping issues

4. Salifert Nitrate No3 Test Kit


TheSalifert Nitrate (No3) Test Kit is another choice not to miss when comparing your options for an item in this category. You will love the All Seas Marine test kit that it is affordable and ideal for beginners because it is easy to use.

Another thing to like about it is that it can offer a dual range result because it can be used for fish only and reef tanks. It is not hard to use that you can depend on it for quick results, too. You can also use it for monitoring any issues that might harm your fish and plants. Check it out for a test kit that can monitor for as low as 0.2-ppm nitrate levels.


  • Can measure nitrate levels accurately
  • Can detect even invisible issues
  • Dual range for fish only or reef aquariums
  • Affordable and quality item
  • Can detect as low as .2 ppm of nitrate levels



  • Can work well if you could read the chart precisely

5. API 5-in-1 Aquarium Test Strips for Freshwater & Saltwater


These API TEST STRIPS are also a great pick in this category because it is versatile for use in saltwater or freshwater aquariums. You don’t need to buy two test kits if you would select it. The test strips are easy to use and timesaving. It can give you the results quickly.

In addition, this pack is already with 25 pieces of test strips, ensuring you don’t need to buy it from time to time. You can also rely on it if you would like to test for nitrate carbonate, nitrite, and pH and water hardness. This kit is also for you if you’re looking for accurate and quick results. Check it out if you’re looking for an easy to use and accurate test kit to monitor water issues.


  • 5-in-1 test strips
  • 25 strips per box
  • Can be used for saltwater or freshwater aquariums
  • Convenient to use with quick results
  • Can be used weekly to monitor any issues


  • Doesn’t test for ammonia

6. NYOS Nitrate Reefer Aquarium Test Kit


If you’re shopping around for a test kit for tank’s nitrate level, you might want to include the NYOS Nitrate (NO3) Reefer Aquarium Test Kit on your list. It is loaded with the features to find when shopping around for this item.

One of the things to like about it is that it comes with 50 Tests, which let you get precise results. Not only have that because I also find that this item can give repeat measurements, which are identical.

The NYOS REEFER test kits can help you achieve peace of mind that your tank water will not have high levels of nitrate that would otherwise harm your fish and plants inside the tank. It will help you come up with a complete and precise analysis to prevent any problems from arising.


  • 50 tests included
  • Quality and affordable
  • Reproducible results
  • Precise and reliable analysis
  • Made in Germany


  • More expensive than others

Nitrate Test Kit Buying Guide

There are many available test kits available on the market and online, so it can be hard to figure out how to select one if you’re a first timer. In the following, let us discuss some of the factors to check when comparing your options so that you can make a great decision later.

Easy to follow instructions

It will not matter if you have a great test kit but you cannot use it properly because the directions are poor. You should ensure that the kit does not have a complicated and hard to follow steps on how to use it. So in addition to precision, ease of use is also a concern.

Reasonable price and practical

You can find test kits that come with 50 pieces of strips, giving you more value of your money. With it, you don’t need to buy test kits from time to time. In addition, it should be affordable, ensuring that you don’t spend much money in the process. However, you should also read remarks about this item being quality in addition to being affordable.

Can test for a wide range of issues

In addition to the above, check out the label of the item and see if it can test for ammonia, pH, nitrate and other chemicals or elements that would otherwise pose harm to your tank friends and plants. It will also help finding a test kit that can detect for any invisible issues that might pose harm to the tank’s content.


You should buy a nitrate test kit that can offer you with precise results. After all, it is one of the reasons that we’re buying this kit. We would like to find out the level of nitrate, pH level, water hardness and alkalinity, among other things depending on the item you bought.

What is a Nitrate Test Kit?


This product is especially designed and made to ensure that there are safe levels of nitrate, ammonia, pH, water hardness and alkalinity in the tank water depending on the kind of test that the kit you bought can do. Nevertheless, it is used in measuring a water parameter in order to keep your plants and fish safe.

Types of Nitrate Test Kits

What are the different kinds of nitrate test kits? There is no one type available. For this reason, it can be pretty overwhelming to decide on which to choose. But then, you don’t need to worry because some of the kits available can check for at least one water parameter.

Nevertheless, there are different test kits available. In this case, you should know your options so that you can select well. A few of the test kits available include those for checking –

  • Iodine
  • Nitrate
  • Chloramine
  • pH
  • Alkalinity
  • Chlorine
  • Copper
  • Calcium
  • Ammonia
  • Magnesium
  • Copper

On the other hand, there are those kits available on the market that can test not only for nitrate but also for other elements. You can find variants that can work in five ways. Some of them can test for ammonia, water hardness, alkalinity, pH level and chlorine.

Nevertheless, you can compare those based on what you want to check for yourself. You can get started by choosing among those we’ve reviewed earlier. They are top picks on the market that can check for specific water qualities and characteristics.

However, you need to ensure that the kit you’re buying is effective and efficient in performing its job. For help, you can check out reviews that outline what customers were saying about the particular product. It will also help that you read the label carefully to know and understand whether an item can monitor for only one water parameter. Also, it will help to find a kit that can give out results fast.

Why Do You Need Nitrate Test Kit?

If you love your fish, you should keep them healthy and happy. One of the best ways to do that is to use a test kit. It will not only let you keep your tank friends happy and out of trouble but also ensure your plants will not die.

Without having to say, using these test kits is important because they can keep your tank a healthy place to live in for your fish and plants. These kits can be lifesavers to your tank friends, so it is important that you select a good one that can offer precision, reliability and effectiveness. With them, you can be sure that your fish and plants will remain healthy.

Any one of these kits can help in measuring the level of nitrate so that you’ll get an idea if it is safe or not for your fish. In addition, there are also kits that can measure for other parameters, such as pH and chlorine. With vital information from these kits, you can be certain that you’re keeping a healthy tank for your fish and plants.

They are also effective and efficient in terms of giving you the vital information you need. For this reason, you must select the right kit. Some of them can be used for marine tanks and others for freshwater tank. On the other hand, the best ones can be used for any kinds of tank, so there is no worry at all regarding their versatility.

Frequently Asked Questions


What does a nitrate test kit measure?

The nitrate test kit measures the level of nitrate in the water that could otherwise harm your plants and tank friends. Many of these test kits can also analyze specific water parameters, including ammonia, chlorine, alkaline, pH and other chemicals.

Overall, they are some of the most useful kits to have if you are keeping a tank, freshwater or seawater tank. Depending on the type of chemicals that you want to check, you can find specific items that can help you test and measure them. You can get started in the selection process using our reviews above with each item featuring their pros and cons.

How to use API test kit nitrate?

These test kits are easy to use. You just have to dip the strip on the water and check for the results usually in one minute or less. They are precise and accurate in terms of testing nitrate and other chemicals present in the tank. For specific directions, you can also check for the label outlining those instructions from the manufacturer. Nevertheless, there is no hard process involved in the use of these nitrate test kits.

Where to buy nitrate test kits?

There are many kinds of nitrate test kits to find online and in many pet/fish supplies stores. They are available in different sizes and with specific features depending on the kind of nitrate test kits that you are looking to buy.

The nitrate test kits, which is an additional or separate aquarium or tank, can serve as a spot where tank keepers can add filters, protein skimmer and other cleaning devices, including pumps. You can also find these products in online marketplaces that include where to find a wide selection of products from different manufacturers. Here and other places, such as EBay can offer you not only different items to choose from but also products from the legitimate manufacturers.


So, have you chosen among the featured nitrate test kits? Again, check for specific features that include the accuracy, type and kinds of chemicals that the test kit can measure. You might also want to get an item that can monitor invisible issues that can later give you a headache. In addition, you might find a nitrate test kit that can give you precise results and can offer an easy reading.

Nevertheless, you can get started in the process of selection using our top picks reviews that feature the best kits available and the buying guide of the main factors to consider when shopping around for this kind of tank item. Buy the best nitrate test kits today!

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