Tropic Marin Nitrite-/Nitrate Test

For the determination of the nitrite and nitrate concentration in freshwater and seawater.

Nitrite (NO₂^-) is the intermediate stage of the aerobic nitrification and is highly toxic for fish and invertebrates. A too high concentration of nitrite - for example, caused by new filter material - impedes the oxygen transport in the blood and severely restricts cellular respiration. With this test, the nitrite content can be accurately determined from 0.01 to 2 mg/l with the finely tuned color chart.

Nitrate (NO₃^-) is the final stage of the aerobic nitrification and impairs the well being of fish and invertebrates to a lesser degree. But high nitrate concentrations can accelerate algae growth and impede the growth of certain corrals.