REEFER MAX S-850 G3 Black

 

Dive Into the Red Sea REEFER MAX S-850 G3 Black Experience

    The Red Sea REEFER MAX S-850 G3 Black brings together smart engineering, strong cabinetry, and ultra-clear glass for advanced reef building. This system offers refined water movement, improved cabinet strength, and integrated automation through the ReefBeat ecosystem.

Red Sea REEFER Design Philosophy and REEFER MAX S-850 Foundation

Red Sea designed the latest REEFER MAX S-850 G3 platform to give reef keepers dependable performance with practical upgrades. The system uses hydrodynamic plumbing, quieter drains, and a reinforced stand to support long-term stability and smooth operation.

Flow Engineering and Water Management Enhancements

Red Sea optimized internal plumbing to move water more efficiently across the display and sump. The hydrodynamic pipes increase flow by nearly fifty percent while reducing overall pump strain. As a result, the aquarium maintains consistent movement without added noise or wasted power.

Smoother Drain Regulation for Red Sea REEFER Systems

The G3 lineup introduces a rectangular downflow inlet that works with the high-precision ReefGate valve. Together, they create quieter drainage and easier fine-tuning during setup.

Integrated ATO Innovation on the REEFER MAX S-850 G3 Black

Every model in the G3 series features the ReefATO+ package for enhanced stability. Its solid-state sensor maintains water level, protects salinity balance, and monitors temperature more accurately. Additionally, the built-in leak detector alerts users through the ReefBeat App.              

What it Comes with

     

Specifications	REEFER S-550 G3	REEFER S-700 G3	REEFER S-850 G3	REEFER S-1000 G3
Approximate total system volume	145.1 gal	184.8 gal	224.5 gal	264.2 gal
Display tank capacity	118.4 gal	149.2 gal	179.6 gal	210 gal
Sump volume inside cabinet	26.7 gal	35.6 gal	45 gal	55 gal
Display tank length	47.3"	59.1"	70.9"	82.7"
Display tank front-to-back width	26.8"	26.8"	26.8"	26.8"
Display tank height (tank only, no light)	25.6"	25.6"	25.6"	25.6"
Overall system height (stand + tank, no light)	60.2"	60.2"	60.2"	60.2"
Front panel glass (ultra-clear)	0.75"	0.75"	0.75"	0.75"
Side panel glass (ultra-clear)	0.75"	0.75"	0.75"	0.75"
Bottom glass thickness	0.75"	0.75"	0.75"	0.75"
Back panel glass thickness	0.75"	0.75"	0.75"	0.75"
Tank bracing style	Euro brace with bottom brace	Euro brace with bottom brace	Euro brace with bottom brace	Euro brace with bottom brace
ReefLED lighting package	2 RL 170 G2 Lights	2 RL 170 G2 LED LIghts	3 ReefLED G2 170 Lights	4 ReefLED G2 170 Lights
Included circulation / wave pumps	ReefWave 45 (2)	2 ReefWave 45 Gyre Pumps	2 ReefWave 45's	ReefWave 45 (x 2)
Main return pump	Not included	Not included	1 x ReefRun G2 12000	ReefRun G2 12000 (1)
Updated hydrodynamic plumbing with gate valve	Included	Included	Yes	Yes
Protein skimmer	Not included	Not included	1 x RSK DC 900	RSK DC 900 Included
ReefMat / NanoMat roller filter	Not included	Not included	No	No
ReefATO+ kit (hardware)	Included	Included	Yes	Yes
ReefATO+ compatibility / readiness	Yes, includes ReefATO+	1 x ReefATO+	ReefATO+ (x 1)	1 x ReefATO+
Slide-out equipment / control panel in stand (approx. 60 cm)	Include Control-Panel 60 (x 1)	Slide-Out Control Panel 60 (1)	1 x Slide-Out Control Panel 60	Control-Panel 60 (x 1)

     

Cabinetry Upgrades, Support Reinforcements, and Red Sea Craftsmanship

Red Sea built the REEFER MAX S-850 G3 Black cabinet from marine-grade plywood to improve structural strength. Larger G3 models also include front aluminum bracing to stabilize long tanks. Leveling feet ensure the system sits firmly on uneven floors.

Display Glass and Architectural Layout

The display uses ultra-clear, beveled-edge glass panels up to 0.75 inches thick. Smaller G3 aquariums remain rimless, while larger units, including the Red Sea REEFER MAX S-850, add euro-bracing along the top frame for improved rigidity.

ReefMat-Ready Sump and Efficient Filtration Zones

The sump follows the updated REEF-SPEC layout with room for skimmers, media reactors, and hardware. The mechanical chamber accepts a Red Sea ReefMat or filter socks for flexible filtration choices. This layout keeps the main display clean while offering generous space for essential equipment.

System Structure and Red Sea REEFER Build Details

Red Sea arranges each chamber to balance flow, control noise, and support reliable long-term performance. The hardware section accommodates chillers, reactors, and dosing equipment without crowding the return area.

Available Sizes, Series Options, and Red Sea REEFER Scaling

The G3 series spans multiple footprints to support new hobbyists and expert reef keepers alike. Larger models like the REEFER MAX S-850 G3 Black offer wide aquascaping room, stronger cabinetry, and refined plumbing features.

Key Highlights at a Glance

• Ultra-clear glass display up to 0.75 inches thick for maximum clarity.
• Hydrodynamic plumbing increases water flow while reducing power waste.
• ReefGate valve and rectangular drain for quieter downflow tuning.
• ReefATO+ maintains water level consistency and tracks temperature.
• Marine-spec plywood cabinet with aluminum bracing on larger models.
• ReefMat-ready sump with flexible filtration layout and equipment space.

     

FAQ About the REEFER MAX S-850 G3 Black

What makes the REEFER MAX S-850 G3 different from earlier versions?

The G3 update uses stronger cabinetry, improved plumbing design, and built-in ReefATO+ components to enhance stability and automation.

Does the Red Sea REEFER MAX S-850 include a return pump or skimmer?

The system does not include a return pump or skimmer, giving users full freedom to choose preferred equipment.

Is the sump compatible with the latest Red Sea ReefMat?

Yes, the sump includes a dedicated mechanical chamber sized for ReefMat installation or standard media filtration.

How thick is the display glass on the REEFER MAX S-850 G3 Black?

The display glass reaches up to 0.75 inches thick, supporting durability and clear viewing.

Can the REEFER MAX S-850 G3 connect to the ReefBeat App?

Yes, the system integrates with ReefBeat when paired with compatible Red Sea smart accessories, including ReefATO+ and ReefWave devices.            

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