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HYDROS Minnow, Twin Micro Dosing Pump Controller
SKU: HDRS-MNNW
MSRP: $ 288.74
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Available Through Authorized Retailer
- The HYDROS Minnow is an aquarium controller with two independent micro-liquid dosing pumps.
- It is built for dosing two-part solutions and trace elements in reef or freshwater tanks.
- It doses two liquids at once and links to four Sense Ports for added monitoring.
- Two Command Bus ports let it join other HYDROS devices for a safer, unified failsafe system.
HYDROS
USA-built aquarium automation system that monitors & controls equipment from an intuitive app.
Twin Micro Dosing Pump Controller for Two-Part and Trace Elements
The HYDROS Minnow pairs an aquarium controller with two independent micro-liquid dosing pumps, so you can automate two-part dosing or trace elements from a single, compact unit. It works well in saltwater tanks, freshwater tanks, and ponds, and it can run on its own or link into a larger HYDROS setup as your system grows.
Beyond dosing, the Minnow can connect up to four sense port accessories, such as temperature sensors, flow meters, TDS monitors, and leak detectors, so one controller covers both liquid dosing and basic system monitoring. Its enclosure carries an IP65 rating, and all HYDROS products are engineered, assembled, and supported in the USA.
Key Features:
- Two independent micro-liquid dosing pumps with rotatable, color-coded dosing heads
- Adjustable pump speeds from -55 to 55 mL/min for precise, repeatable dosing
- Four sense ports for temperature, fluid level, leak detection, flow rate, and TDS
- Two Command Bus ports for wired links to other HYDROS controllers
- Dual-core 32-bit processor for fast, on-device control decisions
- Splash-proof, dust-proof housing with aircraft-style connectors
- Real-time alerts sent to your phone through the HYDROS app
Ideal For:
- Reef keepers automating a two-part dosing regimen without a large multi-channel controller
- Hobbyists who want one device to dose trace elements and monitor temperature or TDS together
- Freshwater and pond owners looking for a compact, standalone dosing controller
Pro Tips:
- Mount the Minnow vertically before powering it on. Like other HYDROS dosing controllers, it's designed to hang on a wall or side panel, not sit flat, so calibration holds steady over time.
- Keep matching tubing with matching heads. The color-coded dosing heads and tubing exist so you don't cross-dose two supplements by mistake. Check the color pairing each time you swap containers.
- Recalibrate after a tubing change. Fresh tubing has slightly different flex than worn tubing, which can shift your dosed volume. Recalibrate any time you replace it.
Expand Your System
More Sensors, More Control - You Choose the Accessories You Need for Your Aquarium
Sense Port
HYDROS devices utilize an entirely new way to measure parameters. A Sense Port is a universal input port that can gather data from numerous different types of sensors.
HYDROS Sense Port Accessories
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HYDROS Two-Part Dosing Example Setup
For Maintaining Stable Water Chemistry
What's Included:
- Minnow Controller
- Power Supply
- Two (2) 10ft Color Dosing Tubing
- Calibration Beaker
HYDROS Minnow Technical Specifications:
Physical
- Dimensions (L × W × H): 6 × 6 1/4 × 2 1/2 in
Dosing Pumps
- Quantity: 2 independent micro-liquid dosing pumps
- Pump Set Speeds: -55, -45, -25, 25, 40, 55 mL/min
- Tubing Size (ID × OD): 3 × 5mm
- Direction: Reversible (negative and positive speed settings)
Sense Ports
- Quantity: 4 universal input ports
- Compatible Sensors: Temperature, fluid level, leak detection, flow rate, dual TDS
Command Bus
- Quantity: 2 ports
- Function: Data transfer and power delivery to HYDROS accessories
Connectivity
- WiFi device control: Up to 8 devices via HYDROS app (requires HYDROS WiFi Power Strip, Control XP8, or Smart Plug, sold separately)
- App: HYDROS cloud-based app (iOS and Android)
- Local control: Available via WiFi even without internet
Processing
- Processor: Fast dual-core 32-bit
- Control logic: Executed locally on-device
WARRANTY
CoralVue, Inc. hereby guarantees this product to be free from defects in material and workmanship for a period of:
- One (1) year warranty on the device body/housing
- One (1) year warranty on dosing pump motor (not dosing head(s))
- Tubing, head rollers, and head bushings are considered wearable parts because they experience regular friction, pressure, and use over time, leading to natural degradation. Since these components are expected to wear out during normal operation, they are not covered under the limited warranty.
Warranty is activated on the date of purchase.
This Standard Limited Warranty applies and is limited as follows:
- To the product only as long as it remains in the possession of the original purchaser.
- To the product that has not been subject to accident, misuse, or abuse.
- To the product that has not been modified, altered, defaced, or had repairs made or attempted by other than CoralVue, Inc.
- That CoralVue be immediately notified in writing within ten (10) days of the owner's or his agent's first knowledge of the defect.
- That CoralVue, Inc. shall be given the first opportunity to make any repairs, replacements, or corrections to the defective construction within a reasonable period of time.
- Under no circumstances shall CoralVue and/or the Manufacturer be liable by virtue of this warranty or otherwise for damage to any person or property whatsoever for any special, indirect, secondary, or consequential damages of any nature, however arising out of the use or inability to use because of the product defect.
Refer to the user guide at https://www.coralvuehydros.com/product-support/ for setup instructions. Ensure all dosing controllers are securely vertically mounted on an elevated wall or side panel before use.