Why Test for Nitrite?
Testing for the presence of toxic nitrite is essential, so that once detected, steps can be taken to remove it. Otherwise, nitrite in the water will prevent fish from carrying on normal respiration. High levels of nitrite quickly lead to fish death. Even trace amounts of nitrite stress fish, suppressing their immune system and, thereby, increase the likelihood of disease and subsequent fish loss. In new aquariums, high nitrite is a normal occurrence. It means that the Nitrosomonas bacteria in the biological filter have started the nitrification process and have produced nitrite from ammonia. When nitrite is present, however, it means Nitrosomonas are not yet present in sufficient quantitites to transform nitrite into less harmful nitrate. When to Test for Nitrite In new aquariums, we advise you test for nitrite daily for at least two weeks. Nitrite should also be tested when you suspect a malfunctioning of the biological filter. Nitrite Test Directions • Fill the sample pipette to the
