Say Goodbye to Manually Testing for Calcium, Alkalinity, or Magnesium in your Reef! The Trident is an automated testing system that regularly tests alkalinity, calcium, and magnesium in your saltwater aquarium — and then communicates this information to your Apex so you can get alerts, and change your dosing. When combined with the DOS (available separately) it creates a fully automated system for the proper dosing of supplements, maintaining them at consistent levels. Automatically performs Calcium, Alkalinity, and Magnesium testsIncludes 1-month of reagentCombine with Neptune DoS for automated dosingProgrammable alerts for out of range parametersData is graphed for easy to comprehend tank statsCan be set-up and integrated with your Apex in less than 15 minutesEmpties used reagents and sample into an external vessel (not included)Up to one month of testing before reagents need changing; based on 4-Alk, 2-Ca, 2-Mg tests per day Note: Requires Neptune Apex or ApexEL with an open 1Link OR a 24V Power and Aquabus cable Specifications: Dimensions: 9.8" x 12.4" x 4.9" Alkalinity Precision: +/-.05 dKh Calcium Precision: +/-15 ppm Magnesium Precision: +/-15 ppm Testing Time: Around 7 minutes per test Sample Water Required: Around 8mL per test Max Head: Must be less than 4' from the water sample What's Included? 1x Trident System 1x 1Link Cable 5' Black Sample Tubing 5' Clear Waste Tubing 1x 2-Month Reagent Supply