Trident Automatic Aquarium Water Tester
Reef stability starts with consistent data. The Neptune Systems Trident lineup automates the parameters reef tanks live and die by, then logs results in Apex Fusion so trends are easy to spot and action is fast.
Trident ACM focuses on the big three (alkalinity, calcium, magnesium) for day-to-day stability and dosing confidence. Trident NP tracks nutrients (nitrate, phosphate) to help dial in feeding, filtration, and export. Paired with an Apex Controller, both testers can send alerts, build clean graphs, and support smarter decisions without living on the test bench. Adding a DOS module to your Neptune Ecosystem will expand your automation capabilities even further by dosing additives and even performing water changes all based on Trident test results.
Trident ACM vs. Trident NP
Trident ACM (Alk, Ca, Mg)
High-frequency testing for the core reef parameters. Built for consistency, repeatability, and tighter control over consumption and dosing.
- Automates alkalinity, calcium, and magnesium testing
- Tests up to 24 times per day for detailed trend tracking
- Logs results to Apex Fusion for graphs, history, and visibility
- Configurable alerts when values move out of range
- Can support Automatic Dosing Control when paired with a Neptune DÅŒS
- Guided setup in Apex Fusion with simple sample and waste lines
Trident NP (Nitrate, Phosphate)
Automated nutrient testing to keep color, growth, and algae in check. Ideal for refining feeding and export with real numbers instead of guesswork.
- Automates nitrate and phosphate testing
- Scheduled testing once per day, with manual tests available as needed
- Logs results to Apex Fusion for graphs and long-term nutrient trends
- High/low alerts help catch nutrient spikes or bottoming out
- Reagents store neatly inside the unit
- Supports Apex-based actions to help protect stability when trends shift
Why Run Both?
See The Full Story
Connect consumption (Alk, Ca, Mg) with nutrient trends (NO3, PO4) for a clearer full tank picture.
Catch Drift Early
Spot changes sooner, before coral response or algae makes it obvious.
Adjust With Confidence
Make dosing, feeding, and export changes backed by consistent data.
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Frequently Asked Questions
What is the difference between Trident ACM and Trident NP?
Trident ACM automates alkalinity, calcium, and magnesium testing for core reef stability. Trident NP automates nitrate and phosphate testing to track nutrients and help fine-tune feeding and export.
Do you need an Apex Controller to use Trident ACM or Trident NP?
Yes. Both testers are designed to work with compatible Neptune Systems Apex Controllers and use Apex Fusion for results, graphs, alerts, and automation.
How often do they test?
Trident ACM can test multiple times per day (up to 24). Trident NP is designed to run one automated test per day, with the option to initiate additional tests manually when needed.
Do they come with reagents?
These listings are the units without reagents. Reagent kits are required for operation and may ship separately based on shipping restrictions.
Can Trident ACM control dosing automatically?
When paired with a Neptune Systems DÅŒS dosing pump, Trident ACM can support Automatic Dosing Control in Apex Fusion to help maintain target alkalinity, calcium, and magnesium with built-in safeguards.
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