Proaqua Test JBL N0² refill

Nitrite is a toxic nitrogen compound, which is formed when the bacterial balance is disturbed or when setting up a new aquarium.
Laboratory comparator system to compensate the inherent water colour: fill glass vials with sample water, add reagents to one vial, place vials in holder, read values off colour chart.
Use: when setting up a new freshwater aquarium: daily for 3 weeks.
For initial setup with marine water: once a week.
For use with fish diseases or fish deaths.
You will find detailed information and troubleshooting tips about water analysis on the JBL website in Essentials/Aquarium or Pond.
Package contents: 1 nitrite test for approx. 50 measurements, incl. 2 reagents, 2 glass vials with screw caps, syringe, comparator block and colour scale.
Reagent refill separately available.