Red Sea ReefDose 2
Wattage
10 W
Water type
Marine
Warranty
2 years
Size
13 x 10.5 x 8.5 cm
Voltage
100-240 V AC input / 12 V DC output
Red Sea ReefDose 2
Automate two-part dosing without the daily top-up. The Red Sea ReefDose 2 is an app-controlled dosing pump with two independently scheduled heads, built to deliver reef supplements automatically and consistently throughout the day. It suits reef tanks running a two-part calcium and alkalinity program, dosing in increments as small as 0.1 mL on a schedule you set in Red Sea's ReefBeat app.
Key features
- Two independent dosing heads - run separate schedules for two different supplements, such as calcium and alkalinity
- 0.1 mL dosing increments, +/-0.05 mL accuracy - small, frequent doses instead of one daily spike
- Up to 24 scheduled doses per head, per day - spread dosing evenly rather than dumping it in all at once
- Wi-Fi and the free ReefBeat app - schedule, adjust and monitor from your phone, no separate base unit required
- Three selectable flow rates - Whisper, Regular and Turbo, to suit different dose sizes
Specifications
| Spec | Value |
|---|---|
| Dosing heads | 2, independently scheduled |
| Dosing accuracy | +/-0.05 mL |
| Dose range per head | 0.2-1000 mL, in 0.1 mL increments |
| Flow rate options | Approx. 15 mL/min (Whisper), 30 mL/min (Regular), 45 mL/min (Turbo) |
| Schedule granularity | Up to 24 individually timed doses per head, per day |
| Delay between heads | Adjustable, 15 seconds to 5 minutes |
| Connectivity | Wi-Fi (2.4 GHz), Red Sea ReefBeat app - no base unit required |
| Power supply | 100-240 V AC input, 12 V DC output, up to 10 W |
| Dimensions (W x D x H) | 13 x 10.5 x 8.5 cm |
| Tubing | 3 mm ID / 5 mm OD - Red Sea specifies TPE tubing, not silicone |
What's included / Not included
In the box: the ReefDose 2 pump unit, power supply, mounting bracket and a measuring cylinder for calibration.
Not included: dosing tubing and delivery tips, and supplement containers. You'll need a tubing kit, such as the Red Sea ReefDose Accessory Kit, before you can run your first dose.
Which ReefDose do I need?
| ReefDose 2 | ReefDose 4 | |
|---|---|---|
| Dosing heads | 2 | 4 |
| Typical use | Two-part dosing, e.g. calcium and alkalinity | A full multi-part regime, e.g. calcium, alkalinity, magnesium and trace elements |
| Dimensions (W x D x H) | 13 x 10.5 x 8.5 cm | 22.5 x 10.5 x 8.5 cm |
| Dose range per head | 0.2-1000 mL, 0.1 mL increments | 0.2-1000 mL, 0.1 mL increments |
If you're only running a two-part program, the ReefDose 2 covers it. Add a third or fourth supplement and it's time to step up to the Red Sea ReefDose 4.
Suitable for, and not suitable for
- Suitable for marine reef aquariums running scheduled supplement dosing
- Suitable for two-part calcium and alkalinity programs, or any two supplements dosed on separate schedules
Not suitable if you need more than two independently scheduled supplements - choose the four-head ReefDose 4 instead.
Care and maintenance
Calibrate each head against the included measuring cylinder when you install new tubing or switch supplements, and recheck periodically - dosing tubing wears with use and can drift out of calibration over time.
Safety
This is a mains-powered device - connect the supplied power unit to a standard outlet, ideally through a GPO protected by an RCD, as with any aquarium electrical equipment. Reef supplements are often alkaline or corrosive: follow the supplement manufacturer's handling instructions, and route tubing so a leak drains away from electronics rather than into them.
Goes well with
- Red Sea ReefDose Accessory Kit (Blue+Green) - the tubing, tips and holder your ReefDose 2 doesn't come with
- Red Sea ReefDose 4 - if you outgrow two channels
Warranty and delivery
Red Sea's manual states a 24-month limited warranty on the pump, in addition to your rights under the Australian Consumer Law. Ships on standard parcel freight.
Common questions
Does the ReefDose 2 need a separate controller?
No - it connects directly to your Wi-Fi and is scheduled entirely from Red Sea's free ReefBeat app; no base unit or hub is required.
Can I run four supplements from a ReefDose 2?
No - it has two independent heads. For a four-part regime, step up to the ReefDose 4.
Does it come with tubing?
No. Red Sea sells the pump and the dosing tubing separately - see the ReefDose Accessory Kit for colour-coded lines and tips.
What's the smallest dose it can deliver?
0.2 mL per head, in 0.1 mL increments - fine enough for small nano systems as well as larger reefs.
