2mL/min Dosing Pump - Hydros

The Hydros 2mL/min Dosing Pump handles one of the most repetitive tasks in reef keeping — consistent, measured delivery of liquid additives — without requiring a dedicated controller ecosystem to do it. Plug it into any 120V digital timer or aquarium controller and it will dispense your chosen solution on whatever schedule you set. At 2mL/min average output and ±2% accuracy, it provides enough precision for trace element supplementation and standard two-part calcium and alkalinity dosing on smaller systems.

The pump uses a 4-rotor peristaltic mechanism rated for more than 2,000 hours of service. Peristaltic designs inherently prevent back-siphon, so there is no risk of solution draining back into the pump or sump when the unit is off. Quiet operation means it can be mounted in or near a display cabinet without becoming a nuisance.

Each pump doses a single solution, so multi-part dosing regimens require one unit per liquid. If you intend to run several pumps independently on separate schedules, avoid sharing a single outlet between units — each should have its own switched outlet or controller port to maintain independent timing control. The included 10mL plastic beaker is useful for calibration and output verification during initial setup.