Nitrite develops when beneficial bacteria break down ammonia. This becomes extremely toxic to fish when high levels of nitrite persist in the aquarium for more than a week. Test weekly.
Kit includes:
- 1 x NO2/NO3 (17 ml)
- 1 x NO2/NO3 (10 ml)
- 1 x Pipette
- 1 x Glass test tube
- Instruction booklet
- 75 tests