REEFER MAX S-850 G3 White
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REEFER MAX S-850 G3 White by Red Sea Aquariums — A Complete Plug & Play Reefing Experience
The REEFER MAX S-850 G3 White by Red Sea Aquariums takes the guesswork out of reefkeeping with a fully integrated, professional-grade setup. Available under Red Sea Aquariums in the REEFER collection in the Aquariums category, this system merges elegant white cabinetry with precision engineering and app-based control for a seamless saltwater experience. Every component works in harmony to deliver quiet performance, stunning visuals, and dependable automation for serious reef enthusiasts.
the REEFER MAX S-850 G3: Where Smart Design Meets Practical Innovation
The REEFER MAX S-850 G3 isn’t just a reef tank—it’s a full ecosystem built for performance and ease of use. Each system comes with euro-braced, ultra-clear glass, a low-profile overflow box, and dual side-facing return outlets. Its hydrodynamic design enhances water movement while maintaining a silent flow pattern across the tank.
Display Specifications:
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Display Volume: 179.6 gallons
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Total System Volume: 224.5 gallons
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Sump Volume: 45 gallons
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Dimensions: 70.9" L × 26.8" W × 25.6" H
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Glass Thickness: 0.75"
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Total Height: 60.2"
Features and Specifications
| Specification | 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) |
Marine-Spec Cabinet Built to Impress
The white Marine-Spec aluminum cabinet offers strength and durability beneath a sleek, modern finish. Powder-coated panels resist salt corrosion while maintaining a refined aesthetic that complements any interior. Adjustable feet provide effortless leveling, ensuring long-term stability even under the heaviest live rock layouts.
Effortless Setup with Complete Reef Control of the REEFER MAX S-850 G3
The REEFER MAX S-850 G3 White comes fully loaded with Red Sea’s smart ecosystem of equipment—all controlled through the ReefBeat App. This central hub connects every lighting, filtration, and flow component, streamlining your reef’s maintenance and automation.
Included Smart Equipment:
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ReefLED G2 170 (x3) – Advanced LED lighting for coral color and growth
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ReefWave 45 Powerheads (x2) – Gyre-style pumps for consistent, quiet water movement
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ReefRun 12000 DC Return Pump (x1) – Energy-efficient, high-flow return system
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ReefRun Controller (x1) – Precision flow control via ReefBeat App
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REEFER DC 900 Protein Skimmer (x1) – Self-leveling skimmer with smart regulation
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ReefMat 1200 Filter Roller (x1) – Automated fleece roller for crystal-clear water
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ReefATO+ Auto Top-Off System (x1) – Monitors level, temperature, and potential leaks
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Slide-Out Control Panel 60 (x1) – Keeps electronics neat and accessible
You can explore these components under Filtration & Skimmers and Lighting & Flow Equipment in their respective categories, along with other compatible gear in the REEFER series.
Smart Lighting for Vibrant Coral Growth
The ReefLED G2 170 units produce rich spectrum lighting from 10,000K to 23,000K, with enhanced violet and UV output. The 470nm blue channel brings out coral fluorescence, while built-in sunrise, sunset, and lunar cycles create natural daily rhythms—all adjustable through ReefBeat.
Precision Flow and Filtration
The ReefWave 45 Gyre Pumps move up to 3,960 GPH each, delivering even water flow that mimics ocean currents. The ReefMat 1200 ensures mechanical filtration stays automated, notifying you through the app when the fleece roll nears replacement. Together, they keep the tank stable, clean, and effortless to maintain.
ReefATO+ and ReefRun Integration
The ReefATO+ system maintains salinity and temperature automatically, protecting corals from fluctuations. Meanwhile, the ReefRun G2 DC Pump quietly powers the return system, customizable through the app with feed modes, safety alerts, and scheduled flow variations.
What’s Included with the REEFER MAX S-850 G3 White
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REEFER MAX S-850 G3 Aquarium (White Finish)
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Marine-Spec Aluminum Cabinet
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Glass Sump & Pre-Glued Plumbing
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ReefLED G2 170 Lighting (x3)
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ReefWave 45 Powerheads (x2)
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ReefRun 12000 Return Pump (x1)
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REEFER DC 900 Protein Skimmer (x1)
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ReefMat 1200 Automatic Filter Roller (x1)
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ReefATO+ Auto Top-Off System (x1)
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Slide-Out Control Panel 60 (x1)
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5-Year Manufacturer Warranty (3 years standard + 2 years upon registration)
System Overview
| Specification | Details |
|---|---|
| Display Tank Volume | 179.6 gallons |
| Total System Volume | 224.5 gallons |
| Sump Volume | 45 gallons |
| Glass Thickness | 0.75" |
| System Height | 60.2" |
| Lighting | 3× ReefLED G2 170 |
| Flow Pumps | 2× ReefWave 45 (3,960 GPH each) |
| Return Pump | ReefRun 12000 DC |
| Protein Skimmer | REEFER DC 900 |
| Filter Roller | ReefMat 1200 |
| ATO System | ReefATO+ |
| Control Panel | Slide-Out Control Panel 60 |
Frequently Asked Questions About the REEFER MAX S-850 G3 White
Is the REEFER MAX S-850 truly plug-and-play?
Yes, it arrives pre-configured with Red Sea’s full ecosystem—simply connect the plumbing, power up, and sync to ReefBeat.
How quiet is this system compared to traditional reef tanks?
Between the ReefGate valve, DC pumps, and gyre flow design, operation remains nearly silent day and night.
Can I expand the system with additional equipment?
Absolutely. The sump layout supports add-ons like reactors, refugiums, and chillers without modification.
Is the ReefATO+ suitable for freshwater setups?
No, it’s designed exclusively for marine systems to maintain precise salinity and temperature balance.
What warranty comes with the REEFER MAX S-850 G3 White?
It includes a 3-year standard warranty, extendable to 5 years upon registration within 90 days.
Designed for Coral Growth and Long-Term Reliability
The REEFER MAX S-850 G3 White by Red Sea Aquariums redefines what a ready-to-run reef system can be. It’s quiet, smart, and visually striking, built for aquarists who demand beauty and reliability without compromise. Between its high-end equipment and refined cabinetry, this system doesn’t just house coral—it elevates your entire space.
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