HYDROS Duet Aquarium Controller with Dosing Pumps

HYDROS Duet: Aquarium Controller with Dual Continuous-duty Stepper Motor Dosing Pumps

Key Features:

• Two continuous-duty stepper motor dosing pumps designed for continuous use with a speed range of 0.1 to 600 ml/min per pump
• Both pumps can run in reverse, simplifying drain and fill plumbing for automatic water change setups
• Managed through the HYDROS cloud-based app with remote access, push notifications, and custom alert settings
• No programming required: scheduling and automation are configured through tap and drag menus on the app
• 4 Sense Ports accept HYDROS temperature probes, optical and capacitive level sensors, flow sensors, leak detectors, and switches
• 1 Drive Port provides switched 12V DC power for ATO pumps, diaphragm pumps, fans, solenoids, and cabinet lights (1A per port, 1.5A total)
• 2 Command Bus ports connect to other HYDROS devices for data transfer, power sharing, and system-level automation
• Splash-resistant enclosure with aircraft-style connectors built for the corrosive reef environment (IP-65 Rating)
• Works as a standalone controller or integrates with the broader HYDROS ecosystem
• Outlet control over lights, pumps, and accessories requires additional HYDROS devices (not included)
• Pharmed pump tubing rated for approximately 1,000 hours of use; tubing and head components are user-serviceable wear items
• Dimensions: 10.75 x 6 x 5.875 in; Weight: 8.05 lbs

Ideal For:

• Reef and freshwater hobbyists running scheduled automatic water changes who need reliable, high-flow pumps rated for continuous duty
• Reefers managing calcium reactors, kalkwasser reactors, or sulfur reactors who need precise, programmable effluent control
• HYDROS ecosystem users looking to add dosing and controller functionality without purchasing a separate doser
• Advanced hobbyists who want sensor-based automation tied directly to dosing, including level-triggered water changes and leak detection shutoffs
• Aquarists dosing liquid foods, amino acids, or other supplements on a scheduled program who need variable flow rates from micro to high volume
• Hobbyists upgrading from a basic timer-based doser to a cloud-connected, app-managed dosing controller with real-time monitoring

Pro Tips:

• Pair the Duet with a HYDROS XP8 for full system control. The Duet manages dosing and sensors alone, but for controlling lights, return pump, heater, and outlets from the same app, add a HYDROS XP8 or compatible HYDROS device with outlets. Plan ahead if outlet control is a goal.
• Track pump head hours and replace tubing on schedule; Pharmed tubing heads last about 1,000 hours. Tubing, rollers, and bushings are wear items not under warranty. Keeping a run time log helps schedule replacements to prevent failures, dosing errors, or leaks during water changes.
• Start water change at low flow, verify volumes before automation. Manually run each pump to measure output at target speed, as flow varies with tubing condition, height, and line length. Ensure drain and fill volumes match before scheduled run.
• Use Sense Ports to add safety to your water change setup by connecting optical or capacitive level sensors, enabling the Duet to pause or stop dosing if a sump or reservoir reaches an unexpected level. It guards a pump capable of moving up to 600 ml/min. The Duet also monitors its health and alerts if a pump stops drawing current mid-cycle.