Red Sea Reefer S-700 G3 - White Cabinet

The Red Sea Reefer S-700 G3 - White Cabinet is a premium 699 litre / 184.6 gallon reef-ready aquarium and cabinet system that pairs a large 150 cm REEFER-S G3 display with a bright white aluminum super-structure cabinet.

This base REEFER-S system gives reef keepers the tank, cabinet, sump, plumbing, overflow, ReefGate precision valve, ReefATO+, slide-out control panel, and ReefMat-ready filtration foundation while allowing the return pump, lighting, skimmer, heater, wavemakers, and automation package to be selected separately. The result is a clean premium platform for a large custom reef rather than a pre-bundled plug-and-play aquarium.

Red Sea REEFER S-700 G3 White Reef System

• Premium 150 cm reef platform: The S-700 G3 gives aquarists a large 150 cm display with the deeper 68 cm REEFER-S footprint for more natural aquascaping.
• 184.6 gallon total volume: The 699 L system volume supports better stability, larger coral colonies, and more long-term stocking flexibility than smaller aquariums.
• White aluminum cabinet: The white cabinet gives the large aquarium a clean, modern, lighter appearance while retaining the rigid REEFER-S aluminum support structure.
• Custom equipment selection: Return pump, lighting, skimmer, heater, wavemakers, dosing equipment, and automation can be chosen around the intended reef.
• G3 flow upgrades: The system includes Red Sea’s optimized water path, quiet downflow design, ReefGate valve, and dual return outlets.
• Designed for serious reef builds: The S-700 is well suited to hobbyists planning a polished mixed reef, LPS display, soft coral system, or SPS-capable setup with appropriate equipment.

Deep Ultra-Clear Euro-Braced Display

• 564 litre display volume: The display provides 148.9 gallons of main aquarium space for aquascaping, coral placement, and selected reef fish.
• 150 x 68 x 65 cm dimensions: The 68 cm depth gives the aquarium a more dimensional look and makes room for island structures, open sand, caves, and coral ledges.
• 19 mm ultra-clear glass: The front, sides, bottom, and back are listed with 19 mm glass for a substantial premium build.
• Euro-braced support: The bracing reinforces the large display while keeping the top profile clean and professional.
• Low-iron clarity: Ultra-clear glass improves coral colour and fish visibility through the thick panels.
• Strong showpiece proportions: The combination of length, depth, and height makes the S-700 a major display without requiring the longer 180 cm or 210 cm footprints.

White Aluminum Cabinet and Organized Controls

• Aluminum super-structure: The cabinet uses Red Sea’s premium aluminum support system rather than a standard cabinet-only frame.
• Replaceable white panels: The white exterior panels give the system a clean furniture-style finish.
• Hidden adjustable feet: Leveling feet help the system sit correctly during installation while keeping the cabinet profile tidy.
• Slide-out control panel: Controllers, power supplies, dosing equipment, and smart reef hardware can be mounted more cleanly.
• Stainless hardware: The cabinet is built with hardware suited to a marine aquarium environment.
• Bright installation style: The white finish works well in modern homes, offices, showrooms, and bright display spaces.

ReefGate Plumbing and Dual Returns

• Hydrodynamic G3 plumbing: The water-management system is designed for stronger and more efficient circulation.
• Silent downflow system: The rectangular drain inlet helps reduce turbulence and noise.
• ReefGate precision tuning: Fine valve adjustment helps the overflow and sump run quietly and consistently.
• Surface-skimming overflow: The central overflow includes a removable surface skimmer for water-surface management.
• Curved dual return nozzles: Dual outlets help distribute return flow across the 150 cm display.
• Pre-assembled plumbing: Included downflow and return plumbing keeps setup cleaner than a fully custom plumbing project.

REEF-SPEC Sump and ReefATO+ Stability

• 135 litre sump: The sump offers practical room for skimmer selection, return equipment, mechanical filtration, media, probes, and dosing lines.
• ReefMat-ready chamber: The mechanical section includes micron socks and media cups and is ready for an optional ReefMat 1200.
• Integrated ReefATO+: ReefATO+ helps stabilize water level and salinity while adding temperature monitoring and leak detection.
• Flexible filtration planning: The sump supports carbon, reactors, refugium-style nutrient export, skimming, dosing, and monitoring accessories.
• Service-friendly layout: The cabinet sump and control panel help keep equipment accessible and organized.
• Expandable reef foundation: The S-700 can start simple and grow into a more automated Red Sea ecosystem over time.

Red Sea Reefer S-700 G3 White Specifications

• Total system volume: 699 L / 184.6 gal.
• Display volume: 564 L / 148.9 gal.
• Sump volume: 135 L / 35.6 gal.
• Display dimensions: 150 cm L x 68 cm W x 65 cm H / approx. 59.1 x 26.8 x 25.6 in.
• Total height with cabinet: 153 cm / approx. 60.2 in.
• Glass thickness: 19 mm front glass, 19 mm side glass, 19 mm bottom glass, and 19 mm back glass.
• Display format: Euro-braced ultra-clear glass aquarium.
• Cabinet: White aluminum super-structure cabinet with replaceable panels, hidden adjustable feet, stainless hardware, and slide-out control panel.
• Filtration: REEF-SPEC sump with mechanical chamber, micron socks, media cups, ReefMat-ready layout, and integrated ReefATO+.
• Recommended return pump: Red Sea ReefRun G2 12000, sold separately.
• Recommended lighting: 3 x Red Sea ReefLED G2 170, sold separately.
• Recommended ReefMat: Red Sea ReefMat 1200, sold separately.

Application Notes for the REEFER S-700 G3 White

• Best use: Ideal for larger mixed reefs, soft coral systems, LPS displays, and SPS-capable systems with proper lighting and flow.
• Equipment planning: Add return pump, lighting, skimmer, heater, wavemakers, test kits, and optional automation before setup.
• Lighting planning: Use a multi-fixture lighting plan for the 150 cm length and 68 cm depth.
• Flow planning: Add dedicated wavemakers to support coral circulation beyond sump return flow.
• Not included: Lighting, return pump, protein skimmer, heater, wavemakers, livestock, rock, sand, salt, optional ReefMat, dosing equipment, and test kits are sold separately unless otherwise stated.

Red Sea REEFER-S G3 Series Video

Setup and Installation Notes

• Assemble and level the cabinet: Build the white aluminum cabinet according to Red Sea’s instructions and confirm the system is level before placing the aquarium.
• Plan equipment before filling: Choose the return pump, skimmer, lighting, heater, wavemakers, optional ReefMat, and controller layout before adding water.
• Use the control panel: Mount controllers and power supplies neatly before the cabinet becomes crowded with equipment.
• Install plumbing carefully: Confirm overflow, downflow, ReefGate valve, return plumbing, sump, and ReefATO+ setup before filling.
• Leak test with freshwater: Run the aquarium and sump with freshwater before final saltwater setup.
• Tune the ReefGate slowly: Make small adjustments until the overflow and sump operate quietly.
• Use RO/DI water: RO/DI water is recommended for saltwater mixing and top-off.
• Cycle before stocking: Establish biological filtration before adding fish or corals.

What’s Included

• Euro-braced 19 mm ultra-clear glass aquarium
• White aluminum super-structure cabinet with replaceable panels, hidden adjustable feet, stainless hardware, and slide-out control panel
• REEF-SPEC sump with mechanical chamber, micron socks, and media cups
• Pre-assembled downflow and return plumbing with ReefGate precision valve
• Central overflow with removable surface skimmer
• Curved dual return nozzles
• Integrated ReefATO+ sensors and controller

Shipping Notes

• This item is exempt from our free shipping policy.
• To avoid delays, please order Red Sea aquariums by themselves. If you are wishing to order multiple things, please place two separate orders: one for the aquarium and one for the rest of your products.
• Please call for a shipping quote if ordering from NWT, YK, or NUN.
• All Red Sea aquariums are brought in and shipped out on an as-ordered basis. The average turn-around time to ship an aquarium to you is two business days, except where noted below.
• All shipments outside of the Vancouver area are shipped via trucking company with residential and power tailgate delivery, and are fully insured.
• Tanks ordered within BC and, in some circumstances, Alberta may take an extra 5-10 business days to process. Systems ordered from Alberta and east of there usually ship within two business days direct from the distributor in Ontario.
• If you are ordering for pick-up from our store, please select in-store pickup to avoid delivery charges. You will be notified when the tank arrives, usually within 5-10 business days.
• Red Sea Max S Series aquariums are always special order and will take from 3-6 weeks to ship.
• Please note the freight company is only responsible for getting the aquarium to the destination address and off-loading it. They are not responsible for carrying it inside.
• All freight charges have been greatly subsidized to help you get up and running with your new Red Sea system.