Nitrites are toxic substances for fish and invertebrates
Many people have a wrong conviction that once a bathtub has finished its start cycle (after 3 or 4 weeks) the nitrite risk is exceeded. Many nitrite tests suffer from interference with 8natural amines present in amino acids, the result is too low measurement of nitrite concentration.
Nitrites are converted into nitrates from the natural life cycle into the aquarium. Nitrates thus formed are transformed into harmless nitrogen through denitrification. This happens in the areas without oxygen among the live rocks. Before being transformed into nitrogen, nitrates come first reconvested in nitrites. When for some reason this cycle cannot be completed nitrites can be present in significant quantities and detected by a test that does not suffer from interference with amine.
The test Salifert For nitrites it is not subject to these interferences thanks to the special components used. These same components give a change of coloring to the water to be tested fast and turned on, so as to also detect small quantities of nitrites. It is probably the fastest and most careful nitrite test available on the market.
The kit is sufficient for approx. 60 measurements
How to test
The water temperature tested should be above the 18th otherwise the color will not be able to vary in 60 seconds. If the water temperature is lower than the value indicated the test container should be left 10 minutes at room temperature before testing.
• Put with a 1.0 ml syringe of the water to be tested in the test container.
• Add a satin spoon of dust NO2. Mix Dolcement The contents of the test container for 20 seconds. Leave to rest for 60 seconds.
• Place the test container on a white part of the colorimetric scale and and compare the colors. Read the percentage of nitrites detected. A color between two color gradations corresponds to a concentration of intermediate nitrites. The nitrite values are indicated in mg / L. If the nitrite concentration is preferred - nitrogen, the detected result must be multiplied by 0.3.
Greater sensitivity
Raise the test container in front of you and watch it to the side. Place the colorimetric scale behind the container. Make sure the white sector is behind the liquid. The results must be divided by 10.

