5 Of The Best Saltwater Test Kit: A Complete Review

August 31, 2017

Saltwater test kits are crucial for maintaining and measuring your water parameters correctly. But, a lot of people become so overwhelmed when choosing the right one for their tank water.

Luckily, you can pick from our selection of the best saltwater test kit. That way, you can perform an easier and more convenient routine check up to maintain the health of your fish and your aquarium water.




Our Rating


Sera Aqua-Test Box Aquarium Test Kit

Salifert Hardness and Alkalinity Test Kit

API Ammonia 130 Test Kits

Salifert Magnesium Test Kit

Salinity Refractometer Aquarium and Seawater

Best Saltwater Test Kits

Here is a list of the top saltwater test kits for efficient testing of the tank water:

#1 Sera Aqua-Test Box Aquarium Test Kit

Customer Review: 5 out of 5 stars

Unique Features of the Product:

The Sera Aqua Test Kit can check the overall chemistry of your tank water on a regular basis. Also, it can allow you to take measures easily and quickly. Plus, what’s even better is that you do not need to utilize any chemicals in the process.

The Sera Aqua contains test devices for pH value, carbonate hardness, total hardness, and nitrite. It can also check the ammonia, nitrate, iron, phosphate, and chlorine in the water, making it a master test kit. Moreover, you can be assured of accurate results.


  • For me, this is a high-quality test kit for my saltwater aquarium.
  • Also, the kit provides you with readable color comparison charts for every test.
  • ​The booklet of the trial kit contains all of the information you’ll need to use the device.


  • You have to pay close attention when it comes to reading the instructions provided. You have to know that there is no Cl in the color comparison chart.

#2 Salifert Hardness and Alkalinity Test Kit

Customer Review: 4.7 out of 5 stars

Unique Features of the Product:

The Salifert Alkalinity Test Kit can test the water of your aquarium efficiently and safely. Also, it can make up to 200 tests, unlike other test devices available on the market today. In fact, it can detect any changes, small or big, in the tank water.


  • What I like most about this test kit is that it is uncomplicated to use.
  • Moreover, it is easy to use, and it can provide you with accurate results after testing.
  • Also, it has easy to read color change during the test.


  • What I do not like about the Salifert Test Kit is that it is quite expensive.
  • Also, I find its shelf life a negative feature. Also, the expiration date tells you the year; it is not precise.

#3 API Ammonia 130 Test Kits

Customer Review: 4.6 out of 5 stars

Unique Features of the Product:

It is vital that you test your aquarium water for ammonia levels to maintain a well-balanced aquatic life.

Luckily, this kit contains two laminated color cards, two bottles liquid reagent, a glass test tube, and instruction manual. It can even test ammonia levels starting from 0 to 8 ppm.


  • So far, it is one of the most economical kits available on the market because it is affordable.
  • Also, it is easy to use and to understand.
  • Then, it will give you accurate results for the ammonia level.


  • If you do not wash the test tube after the test, it will leave a stain. So better yet, clean it immediately after use.

#4 Salifert Magnesium Test Kit

Customer Review: 4.6 out of 5 stars

Unique Features of the Product:

The Salifert Magnesium Test Kit provides practical tests. Also, it can offer a well-balanced magnesium fish tank. In fact, it can create up to 50 tests.

But, you have to expect that all of them will have accurate color changes in the aquarium for precise results.


  • It works great for me, and it can check the magnesium level quickly and easily.
  • A plus for me is that this kit is also within my budget.
  • Then, it will give you exact results after testing.


  • The downfall of this kit is that the syringe will provide varying air pocket amount. Then, you cannot remove it.

#5 Salinity Refractometer Aquarium and Seawater

Customer Review: 4.5 out of 5 stars

Unique Features of the Product:

The product can assess the salinity of your aquarium water. Also, it can measure on two scales, parts per thousand, and specific gravity. It comes with an electronic temperature compensation. Then, it has a dropper, hard case, cleaning cloth, and screwdriver.


  • It works great for me, and it is convenient to use.
  • Then, the device also makes water changes in an accurate manner.


  • For me, I had a hard time calibrating the device. But, with the use of the manual, I figured it out later on.

Overview of Saltwater Test Kits

Saltwater test kits have a design for analyzing tank water chemistry to help you check out the overall content and salt concentration of your aquarium. A high-quality test equipment will avoid over treating the water, which often leads to danger and high cost.

But, if your saltwater system does not come with an electronic controller for water chemistry, it is best that you balance and test out the water. You can do that each week to make sure of the health of your fish and other marine creatures.

It is vital that you remain on top when checking the salt concentration and chemistry of your tank water.

Function of Salt Cell

The salt cell will make the chlorine in tap water more efficient, and it can last longer if you keep the salinity at a suggested rate. You have to maintain between a range of 2500 to 4500 ppm as you can.

Additionally, to test the water for salinity, it is crucial to make sure that the chemistry is within these ranges regularly.

Also, as you understand how your tank water changes over time, it will be easier for you to monitor it. But, you still have to check out the pH and chlorine per week.

But, before buying one, you should know that a test kit has various testing devices. The saltwater test kit you’ll choose will also depend on how many tasks you can handle on your own to balance out the water.

A test strip can determine the salinity of the water in just a few seconds while other kits will have more accurate readings.

But, we have to go through the different testers available on the market starting from the most basic selections. If you are up to a challenge in balancing the water, you can also choose other kits to carry out the checking of the aquarium water.

Options for Saltwater Test Kits

These strips are simple to use. Plus, they can offer you an accurate salinity and other readings in just seconds.

Also, they are handy because they can serve as a backup to make sure that your tank waters are within the normal levels. But, most test strips will assess salinity ranges between 500 to 700 ppm.

Saltwater Chlorine Drop Tests

The most indispensable saltwater test kit can measure the NaCl or the salinity of the water by utilizing a silver nitrate in a dropper bottle. The test can give off accurate results within 100 to 200 ppm.

However, this test kit is quite challenging to use than strips. Also, it will take a longer time to get the results.

But, an efficient drop test kit can get rid of doubts regarding the salinity of your tank water. Also, it will enable you to have an informed decision when adding salt to boost salinity. You may also choose to put more fresh water to dissolve the salt in the water.

Digital Handheld Salt Meters

If you want an instant and very accurate results, you may have to purchase a digital reader. These units can take over reagent bottles and strips. That way, you won’t have to buy them again when testing the salinity of the water.

If you plan to check the aquarium for a few years, these test kits are wise investments because you do not have to buy more salt strips anymore.

Complete Saltwater Test Kits

These test kits can measure everything that you require in your aquarium water, including pH, chlorine, calcium, alkalinity, and stabilizer. These are all-in-one devices that will make sure of the general health of your fish and tank water.

Also, it will give you enough confidence that you have a reliable water in your aquarium.


It is vital to keep your tank water safe and reliable at all times, especially for your aquatic life. There is a broad range of saltwater test kits available in different shops.

However, the best one for many consumers is the Sera Aqua Test Kit. Not only that it can provide you with a simple process, but it can also offer you accurate results. Plus, this is an all-in-one test kit for beginners and hobbyists.

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