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

(1090 Reviews)
Price
$11.98
Quantity
(10000 available )
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148 Ratings
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Reviews

  • Caleb Chapman

    > 3 day

    Totally useless when cycling a tank when you have high nitrites, can’t tell a lick of difference

  • Custom Ken

    > 3 day

    These are just great test kits, I have been using them for many years.

  • 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.

  • Stephen Brinson

    > 3 day

    Great test kit for the money.

  • Damon2Damon

    Greater than one week

    If youre like me and youre always starting up new tanks this is a must have item. I like to do fishless cycles and its important to test for amm and nitrite which are extremely toxic to fish. This item is easy to use just add 5mls of tank water 5 drops shake and wait 5 mins the color chart is easy to follow and accurate. I can only find this test kit online and the price is always great with fast shipping.

  • B CB

    > 3 day

    Works great. More accurate than strips

  • Henry Lew

    12-06-2025

    works great, looks great, very happy with purchase

  • larry walworth

    11-06-2025

    needed to maintain fish tanks

  • michael

    > 3 day

    Replacement for API Master Kit

  • Mel O

    > 3 day

    Test seems to work, showed varying levels as new tank was cycled. The small glass tube warped somehow when I didnt empty the solution. Either chemical reaction or from too much exposure to sunlight on window sill? I dont know but it crumbled into small shards. Pretty annoying.

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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