Sera Nitrite Test (NO2)

The sera NO2 test is a water test for checking the nitrite content in fresh and saltwater aquarium, as well as in garden ponds.

Determine water values
pH value, carbonate hardness (KH), ammonium and nitrite are among the most important water parameters. Extreme deviations from the target values can suddenly become an acute danger to life. Whenever the appearance or behaviour of the fish is conspicuous, or other peculiarities (eg sudden dying of aquatic plants) in the aquarium are noticeable, the basic water values should be checked first. For routine control, the easy-to-use test strips can be used. For more accurate results, we recommend the test of the sera aqua-test box in a sturdy plastic case. Total hardness, nitrate, nitrite, phosphate, iron, copper, chlorine, silicate and oxygen should be known to the experienced aquarist as averages in their aquarium. Checking these values every now and then is usually enough. If suspected (eg poisoning, algae problems, shortness of breath) these parameters should be examined more closely.

Nitrite is produced in the aquarium and garden pond as an intermediate degradation product of the fish excrement. Too much nitrite is dangerous. Nitrite is produced from ammonium and is broken down by the filter bacteria to nitrate. Therefore, in addition to the nitrite content, ammonium and nitrate levels should also be checked regularly.

Our expert Oliver Knott recommends:

With the sera NO2 test, you can check your nitrite content exactly and very precisely using a drop test!