Tetra NitriteTest Kit

Nitrite (NO2) is a toxic chemical that is produced from the beakdown of Ammonia by biological filtration. Nitrite if left unchecked will result in fish health problems.  

Without regular testing, the Nitrite level in your aquarium could rise to a level that is fatal to your fish. How To Use As a liquid test kit, Tetra Nitrite changes the colour of the water to show reflect the levels of Nitrite. ◦Compare the colour to the easy to read chart that is provided with the test kit to determine the Nitriite levels in your freshwater aquarium or marine aquarium. If you find that there are high nitrite levels, it is advised that you seek advice as to how establish the cause and also reduce them back to an acceptable level.