The Salifert Nitrate Test Kit (NO3) is one of the most trusted nitrate tests in the reef hobby. Clear colour results, easy instructions and high-quality reagents make it simple to keep an eye on nitrate — the nutrient behind most algae problems in marine aquariums.
Why test nitrate?
Nitrate builds up from fish waste and uneaten food. Too much fuels hair algae and cyanobacteria and stresses corals; too little can starve them. Most reef keepers aim for roughly 2–10 ppm. Regular testing tells you when to do a water change, adjust feeding, or dose a nutrient-control product.
Key features
- Approx. 60 tests per kit — excellent value per test.
- Easy-to-read colour chart — results in minutes.
- Accurate, reliable reagents trusted by reef keepers worldwide.
- Everything included — reagents, test vial, syringe/spoon and clear instructions.
Specifications
| Parameter | Nitrate (NO3) |
| Number of tests | Approx. 60 |
| Method | Colour comparison |
| Suitable for | Saltwater / reef aquariums |
| Result time | A few minutes |
Build your reef test set
Track the full nitrogen cycle with the Salifert Nitrite and Salifert Ammonia test kits, and your coral essentials with KH, Calcium and Magnesium.
Frequently asked questions
How often should I test nitrate?
Weekly for most reef tanks, and more often while you're changing feeding, dosing or filtration.
Can I use it in a freshwater tank?
This kit is designed for saltwater aquariums.
Genuine Salifert product, shipped from Astra Aquatics, Chennai.