Nitrite is toxic and should not be detectable in any well-established aquarium. During cycling, it can exceed 20 mg / L. Nitrate is relatively non-toxic, but it is preferable to keep it below 20 mg / L.

The MultiTest Nitrite / Nitrate measures:

• Nitrite at less than 0.1 mg / L
• Nitrate at less than 0.2 mg / L in marine or freshwater

The values reported in this kit are expressed as nitrite and nitrate, not as nitrogen (to convert to nitrogen, simply divide by 3.3 and 4.4, respectively).

Performs over 75 tests and includes a reference sample for validation.