Minnow Aquarium Controller - Hydros
Minnow Aquarium Controller - Hydros
HYDROS Minnow, Aquarium Monitoring with Twin Micro Dosing Pumps
The HYDROS Minnow features two independent micro-liquid dosing pumps for precise dosing of your preferred liquid supplements, including two-part and trace elements. This highly versatile controller can effortlessly handle essential functions for maintaining a healthy aquarium. With just one HYDROS Minnow, you can dose two separate liquids and four sense port accessories like temperature sensors, flow, TDS monitoring, leak detection, and more.
Whether you have a saltwater aquarium, freshwater tank, or pond, the Minnow can be a standalone controller or seamlessly integrated into other HYDROS Controls to create a more comprehensive system. Operating on a HYDROS Safety Net and boasting an IP65 rating, this controller ensures that your equipment and aquatic life thrive in a safe and secure environment. Moreover, all HYDROS products are meticulously engineered, assembled, and supported in the USA.

Minnow Includes:
- Minnow Controller
- Power Supply
- Two (2) 10ft Color Dosing Tubing
- Calibration Beaker
Minnow Specifics
Dimensions (LxWxH): 6 x 6 1/4 x 2 1/2in
Tubing Size (IDxOD): 3 x 5mm
Pump Set Speeds: -55, -45, -25, 25, 40, 55 (ml/min)
What you can expect from your HYDROS Smart Device
*HYDROS WiFi Power Strip, Control XP8, or Smart Plug required, but not included with Minnow
- Control your HYDROS device(s) from anywhere in the world using the technologically advanced HYDROS cloud-based app
- Ability to monitor and control your HYDROS device(s) locally through WiFi
- A fast dual-core 32-bit processor that allows control decisions to be made within each device
- The user sets the alerts and notifications
- Internal health monitoring to report voltages, currents, CPU status, and the internal temperature of each device
- HYDROS Command Bus connections to transfer data and power to devices


Quick & Easy Setup
There is no complicated programming language to learn. If you can operate a smartphone, you can be the operator of a smart aquarium—tap, drag, press, or flick to adjust settings using intuitive icons and simple menus. Schedule each component in your aquarium life support system to run at a specific time, frequency, or intensity. You can also use real-time data and easily configure more complex actions.
Splash Proof, Dust Proof, and Secure Connection
HYDROS devices look like industrial controllers because they are built to function in the harsh environment of a marine aquarium. The Robust HYDROS enclosure and aircraft-style connectors ensure long-term reliability in the face of splashes and corrosive salt spray.


Command Bus - 2 Available
The Command bus communicates with other HYDROS devices for the ultimate failsafe and can also power other Control devices.

Sense Port - 4 Available
The Sense Port is a new concept in aquarium parameter measurement. HYDROS devices include several Sense Ports. A Sense Port is a generic input port that can accept data from numerous different types of sensors.
Sense Ports Currently Support:
- Temperature sensor - Either air or water
- Fluid level - Optical sensors to measure liquid levels
- Leak detection - Monitoring for both point and wide area leak detection
- Flow rate - Measures the amount of fluid flowing through a pipe
- Total dissolved solids - Dual measurement of the TDS levels from your RODI system
Micro-liquid Dosers - 2 Available
The HYDROS Minnow features two independent micro-liquid dosing pumps for precise dosing of your preferred liquid supplements, including two-part and trace elements for reef aquariums. The Minnow's pumps have the following set speeds: -55, -45, -25, 25, 40, 55 (ml/min).
Micro-Dosers Features:
- Quiet Operation
- Rotatable Dosing Heads
- Exact Metering of Liquids
- Color-Coded Dosing Heads and Tubing
- Easy to Service


Control up to 8 WiFi Devices
The HYDROS App allows you to create rules and set schedules to control our 4-Outlet WiFi AC Power Strips and Smart Outlets. Quickly turn on or off different pieces of aquarium equipment like pumps, powerheads, lights, heaters, algae scrubbers, UV sterilizers, protein skimmers, and more.
*WiFi Power Strip or Control XP8 is required, sold seperately
WARRANTY
CoralVue, Inc. and HYDROS hereby guarantee this product to be free from defects in material and workmanship for a period of:
- 1 Year
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 first knowledge of defect by owner or his agent.
- That CoralVue, Inc. shall be given 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.
PRODUCT SUPPORT
To submit a warranty claim, please visit our CoralVue Support Portal.
HYDROS Minnow Controller and Dosing Guide
The HYDROS Minnow combines two micro-liquid dosing pumps with four Sense Ports and two Command Bus connections. It suits aquariums that need two independently scheduled liquid channels plus sensor monitoring in a compact controller.
Where Minnow fits
- Two integrated dosing heads for independently scheduled liquids.
- Four Sense Ports for compatible HYDROS monitoring sensors.
- Two Command Bus connections for expansion into a HYDROS Collective.
- App-based schedules, monitoring and alerts without custom programming.
Minnow vs Blenny and X10
Choose Minnow when two dosing channels meet the aquarium's needs. The HYDROS Blenny adds four dosing heads plus Drive Ports, while the HYDROS X10 combines four dosing heads with more advanced probe monitoring. See the full guide to compare HYDROS controllers.
Starting a dosing schedule
Calibrate each pump with the exact tubing and liquid it will use. Begin with a conservative schedule, verify the aquarium parameter with a reliable test method and make gradual adjustments. Recalibrate after replacing tubing or changing the liquid on a channel.
HYDROS Minnow FAQs
Can the HYDROS Minnow run as a standalone controller?
Yes. Minnow can manage its pumps and compatible connected sensors on its own, or join other HYDROS controllers through Command Bus.
What is the difference between HYDROS Minnow and Blenny?
Minnow has two integrated dosing heads and four Sense Ports. Blenny has four dosing heads, four Sense Ports and two Drive Ports for compatible 12V accessories.
How do you calibrate the Minnow dosing pumps?
Measure the output from each head over the calibration interval using the intended tubing and liquid, enter that result in the HYDROS workflow, then verify delivery before unattended use.
Shop aquarium dosing pumps or browse all HYDROS products.
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