TEST NO2 test kit for measuring the concentration of nitrite (NO2-) in fresh and salt water. Test intended for measuring the concentration of nitrite (NO2-) within the range of 0.0-3.3 mg/l in fresh and salt water. It is convenient and extremely easy to use.
The relevant reagent solution is added to the water drop by drop until the colour of the sample changes, then it should be compared with the colour scale provided. The sources of nitrites are fish excreta, uneaten food and other organic wastes which accumulate in the aquarium and are broken down by the bacteria. The concentration of nitrites in the aquarium should be zero, as they are very dangerous for the fish. The highest concentration of nitrites is usually observed in new, overpopulated tanks or after treatment with bactericidal agents. For further water inspection we recommend other Tropical tests.