Nitrites are nitrogen compounds that result from the breakdown of ammonia. They are formed from fish waste, food remnants, the decomposition of organic matter, and as a byproduct of the natural nitrogen cycle.

They are toxic compounds for fish without affecting the clarity of the water. Low levels cause respiratory inhibition and stress on the immune system, while high levels cause suffocation.

The API® Nitrite Test Kit helps you quickly and accurately measure nitrite levels so you can always be sure the water is safe for fish.

Suitable for freshwater and saltwater aquariums. Contains 180 tests.

• Nitrite water test
• Aquarium nitrite test