API NITRITE TEST KIT 180-Test Freshwater and Saltwater Aquarium Test Kit

(1090 Reviews)

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$11.98

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(10000 available )

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148 Ratings
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Reviews
  • J. Lowrie

    > 3 day

    What more is there to say? It tests aquariums for nitrite. Actually you do the testing and take a small water sample, add drops of reagent and match colors. If you find nitrite you need water changes. Pretty simple stuff.

  • Beth S.

    Greater than one week

    This item is great for testing aquarium water parameters. it functions great and will last a long time. a tip i have learned is to only use 2.5 ML of water compared to to recommended 5, it has doubled the life of the testing kit with the exact same results as using more product. highly recommend

  • S.K.

    > 3 day

    Green aqua = 0 ppm Blue warns and purples shout.

  • R.M.F.

    > 3 day

    Add the drops to the vial of aquarium water and wait 5 minutes, compare the color to the color chart on the provided card - not hard. API has been around a long time, so I will assume accuracy of the test results.

  • Jade

    > 3 day

    Well it works. What else can I say?

  • Melissa L

    > 3 day

    I always wanted to know how much nitrite is in my aquarium - so this takes the guesswork out. I was happy to see that I have around 0 ppm nitrite. Look up the nitrogen cycle for aquariums if you want to find out more about why this is important to know. I like saving money ordering these products through amazon, the pet stores are too pricey.

  • Christopher J.

    > 3 day

    use it for my AP system

  • Theresa

    Greater than one week

    And I thank you too!

  • Pearline Murphy

    11-06-2025

    good accurate and very usefull

  • Elizebeth

    Greater than one week

    The box was crushed :/ so I was concerned that the glass test tube was broken, but thankfully it was fine!

Keep your fish healthy and thriving by testing your aquarium water"s NO2 levels regularly with this easy-to-use API NITRITE TEST KIT for freshwater and saltwater aquariums. Testing water parameters weekly helps prevent invisible water problems that can be harmful to fish. Nitrite is produced in the aquarium by fish waste and uneaten fish food. Low levels of nitrite inhibit respiration and suppress the immune system; high levels cause suffocation.  The API NITRITE TEST KIT tests for harmful nitrite levels from 0 to 5 ppm. This product comes with one nitrite bottle, one capped glass test tube, one instruction manual and one color card. API NITRITE TEST KIT can be used in freshwater and saltwater aquariums.  With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.

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