API Nitrite NO2 Fresh & Salt Water Aquarium Test Kit, 180 count

By API
Rated 5 out of 5 stars
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API Nitrite NO2 Fresh & Salt Water Aquarium Test Kit, 180 count slide 1 of 8
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API Nitrite NO2 Fresh & Salt Water Aquarium Test Kit, 180 count slide 1 of 8
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About This Item

  • Tests for harmful nitrate in freshwater and saltwater aquariums
  • Includes test solution, glass test tube and color chart
  • Nitrate is produced by nitrifying bacteria in the biological filter as it breaks down ammonia
  • This kit tests for harmful nitrite and measures levels from 0 to 5.0 ppm
  • Detecting unhealthy nitrite levels by testing is important so that you can take action and protect your fish
Play Video: Learn More About API From Our Team of Experts
Learn More About API From Our Team of Experts


About API Testing

Testing the Waters

For fish to thrive, their aquarium water must be similar to the water in their natural environment. Poor water quality can cause stress, illness and even the loss of your fish. Important water quality parameters include ammonia, nitrite, nitrate, and pH. These can vary over time, and they are invisible to the eye, which is why it is necessary to test weekly. Choose from a wide range of API testing options like the Freshwater Master Test Kit or 5-in-1 Test Strips to accurately evaluate your water.

Pressed for Time? Just Dip and Read

Simply dip an API test strip into your aquarium, swirl it twice, and then use the color-coded chart to determine if your water is within safe parameters or if adjustments are needed. That’s it! API test strips are available in a 5-in-1 version, which includes testing for pH, nitrite, nitrate, carbonate, and general hardness. Ammonia and pH test strips are also available so you can mix and match according to your needs.

The Scientific Approach

Get professional results from the comfort of your home with API test kits. Measure up to six parameters with API Master Test Kits, or pick and choose from a wide variety of individual test kits. Both types of kits come with test tubes and a laminated, calibrated color card. API test kits allow for numerous tests, making them an inexpensive way to help keep your aquarium water quality in check.

How to Correct Aquarium Water Parameters

Too Much Ammonia?

Ammonia is released into the water through gills, urine, uneaten food and more. API Ammo-Lock detoxifies it instantly.

Inappropriate pH Levels?

Fish require a specific pH level to thrive. Use API pH Down to lower freshwater aquarium water pH to the right level.

Too Much Nitrite?

Use API Quick Start to quickly consume nitrite and help maintain an active biological filter.

Nitrates Too High?

API Nitra-Zorb helps remove nitrate and other toxins that can be harmful to fish and lead to algae growth.

About API

The team at API has a passion for fish and understands the rewards and relaxation fishkeeping can bring. For almost 60 years, they have developed premium products with a focus on proven and effective results. API offers a range of testing kits, water conditioners and nutritionally superior fish foods. They are dedicated to making a better underwater world for the benefit of fish and those who keep them.

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Fish TypeBetta, Goldfish, Marine Fish...Tropical Freshwater, Marine Fish, Betta...Tropical Freshwater, Marine Invertebrate, GoldfishTropical Freshwater, Marine Fish, Betta...Cichlid, Betta, Goldfish...
Aquarium TypeFreshwater, SaltwaterFreshwater, SaltwaterFreshwaterFreshwater, SaltwaterFreshwater, Saltwater

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1 Customer Reviews



Rated 5 out of 5 stars
By Marcella on Jul 15, 2021

Very easy to use

Gives accurate results quickly and very easy to read.