Neptune Systems Trident NP Automated Nitrate & Phosphate Testing for Advanced Reef Aquariums The Neptune Systems Trident NP is an automated water testing system designed to measure nitrate (NO₃) and phosphate (PO₄) levels in saltwater aquariums. Working seamlessly with the Neptune Apex Aquarium Controller, the Trident NP performs scheduled tests throughout the day, providing accurate, consistent water quality data to help maintain a healthy and stable reef environment. By automating two of the most important nutrient tests, the Trident NP eliminates manual testing, allowing reef keepers to monitor nutrient trends, optimize dosing strategies, and respond quickly to changes in water chemistry. Key Features Automated testing for nitrate (NO₃) and phosphate (PO₄) Designed for use with the Neptune Apex Aquarium Controller Programmable testing schedules throughout the day Accurate, repeatable laboratory-style measurements Real-time results displayed in Apex Fusion Historical graphs and trend analysis Automated alerts and notifications for abnormal readings Simple reagent replacement and easy maintenance