- Suitable for freshwater or marine aquariums to determine nitrate level (0.0-3.3 Mg/L)
- Best used with Biological Aquarium Supplement, Nutrafin Cycle to determine nitrate level (0.0-3.3 Mg/L)
- Essential in monitoring your tanks water quality
- Nitrite should be tested on a weekly basis as it is a toxic and potentially lethal nitrogen compound for fish
- Easy to follow directions; Contains 75 Tests