Nitrite is a toxic nitrogen compound, formed when the bacterial balance is disturbed or in newly set up aquariums Comparator takes inherent water colouring into account: fill water into cuvettes, add reagent in one cuvette, read value Use: when setting up a new freshwater aquarium: daily for 3 weeks. For initial setup with marine water: once a week Find detailed information & troubleshooting tips about water analysis on the JBL website in Essentials/Aquarium or Pond Contents: 1 nitrite test for about 50 measurements, incl. 2 reagents, 2 vials, syringe, comparator block, colour scale
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