Neptune Systems Trident Water Analyzer Nitrate+Phosphate

The Trident NP is an automated testing system for marine and reef aquariums that measures nitrate (NO₃) and phosphate (PO₄) daily — eliminating the need for manual test kits. It draws just 30 ml of aquarium water per test (minimising salinity fluctuations), works via an automatic titration/colorimetric method, and produces results with an accuracy of ±1 ppm for nitrate and ±0.01 ppm for phosphate (or ±5% of the reading, whichever is greater). 

The analyzer integrates seamlessly with compatible controller systems (such as A‑series controllers from the same brand), and can trigger alerts or automated responses when nutrient levels fall outside defined safe ranges — making it ideal for reef setups where stable water chemistry is vital.

Because it automatically monitors and logs nutrient levels, helps prevent algae outbreaks, and allows for data‑driven maintenance or dosing decisions, the Trident NP is especially useful for reef‑keepers aiming for precision and consistency without daily manual testing.