Red Sea Reefer 170 G3 - White Cabinet

The Red Sea Reefer 170 G3 - White Cabinet is a premium compact reef-ready aquarium system that gives aquarists Red Sea’s sump-based REEFER G3 platform in a bright modern white cabinet finish.

This 165 L / 43.6 gal reef-ready system is designed for hobbyists who want a professional foundation for a custom reef build without choosing a fully preconfigured MAX or Deluxe package. It features a rimless ultra-clear display, marine-spec white cabinet, REEF-SPEC sump, ReefMat-ready mechanical filtration section, silent downflow system, ReefGate precision valve, integrated ReefATO+, and Red Sea’s upgraded G3 flow architecture for a cleaner, quieter, more expandable reef system.

Red Sea REEFER 170 G3 White Reef System

• Compact sump-based reef platform: The REEFER 170 G3 gives reef keepers the equipment flexibility of a sump system in a compact footprint that is easier to place than larger reef aquariums.
• White cabinet presentation: The white marine-spec cabinet gives the aquarium a clean, bright, furniture-style look for modern homes, condos, offices, and retail display spaces.
• Base REEFER flexibility: This system leaves lighting, return pump, skimmer, heater, and flow equipment open for the customer to choose based on reef goals and budget.
• Rimless modern profile: The smaller REEFER G3 models use a clean rimless design with smooth beveled edges for a polished display-tank appearance.
• Ideal for planned reef builds: The 170 is a strong choice for hobbyists who want a carefully selected equipment package rather than a one-size-fits-all aquarium kit.
• Red Sea upgrade path: The system is well matched to optional Red Sea hardware such as ReefRun pumps, ReefLED lighting, REEFER skimmers, ReefMat, ReefDose, and ReefBeat-connected devices.

Ultra-Clear Display with White Cabinet Styling

• 60 cm compact display: The aquarium’s 60 cm length makes it easy to fit into smaller rooms while still providing a real reef display presence.
• 33.8 gallon display volume: The 128 L display provides room for a refined aquascape, small reef fish, coral gardens, and carefully planned mixed reef stocking.
• Ultra-clear glass: Low-iron viewing panels improve clarity so coral colour, fish movement, and aquascape detail are easier to appreciate.
• Useful front-to-back depth: The 50 cm width gives enough depth for layered rockwork, open sand, swim-throughs, and coral placement zones.
• Marine-spec white cabinet: The cabinet supports the aquarium properly while creating a coordinated light-coloured display installation.
• Clean equipment concealment: Sump equipment stays below the display so the aquarium remains focused on the reef rather than visible hardware.

G3 Flow, Overflow, and ReefGate Control

• Improved water management: REEFER G3 systems use redesigned hydrodynamic piping and flow architecture for better circulation efficiency.
• Quiet downflow design: The enlarged rectangular downflow inlet helps reduce turbulence and supports quieter operation.
• ReefGate precision valve: The high-precision valve allows fine tuning of the drain line so the overflow can be adjusted for stable, near-silent performance.
• Central overflow box: The overflow includes a removable surface skimmer to help pull film and debris from the water surface.
• Curved return nozzles: Improved return outlets help distribute water back into the display more effectively than a simple straight return.
• Pre-assembled plumbing kit: Included plumbing reduces setup guesswork and gives the system a clean factory-designed water path.

REEF-SPEC Sump and Smart ReefATO+

• REEF-SPEC sump included: The in-cabinet sump provides dedicated space for mechanical filtration, skimming, media, return equipment, and optional upgrades.
• ReefMat-ready chamber: The mechanical filtration section includes micron socks and media cups and is designed for optional Red Sea ReefMat installation.
• Flexible filtration layout: The sump gives aquarists room to plan nutrient export, chemical filtration, skimmer sizing, dosing, and monitoring equipment.
• Integrated ReefATO+: The included smart ATO system helps maintain water level and salinity stability and includes temperature monitoring and leak detection.
• Cleaner maintenance access: Filtration equipment is consolidated in the cabinet, making service more practical than a rear-chamber nano system.
• Built for future equipment: The REEFER 170 G3 can grow with the reef as equipment needs change over time.

Red Sea Reefer 170 G3 White Specifications

• Total system volume: 165 L / 43.6 gal.
• Display volume: 128 L / 33.8 gal.
• Sump volume: 37 L / 9.8 gal.
• Display dimensions: 60 cm L x 50 cm W x 51 cm H / approx. 23.6 x 19.7 x 20.1 in.
• Total height with cabinet: 137 cm / approx. 53.9 in.
• Glass thickness: 10 mm front glass, 12 mm side glass, 10 mm bottom glass.
• Display format: Rimless ultra-clear glass aquarium.
• Cabinet: White marine-spec plywood cabinet with leveling feet.
• Filtration: REEF-SPEC sump with mechanical chamber, micron socks, media cups, ReefMat-ready layout, and ReefATO+.
• Recommended return pump: Red Sea ReefRun G2 4000, sold separately.
• Recommended lighting: Red Sea ReefLED G2 115, sold separately.

Application Notes for the REEFER 170 G3 White

• Best use: Designed for saltwater reef aquariums, compact custom reef systems, soft coral displays, LPS reefs, and carefully planned mixed reefs.
• Equipment selection: Choose a return pump, skimmer, lighting, heater, and flow pumps before setup so the system is ready for cycling.
• Custom reef advantage: The base REEFER format allows customers to build around preferred lighting and filtration choices rather than buying duplicate equipment later.
• Flow planning: Add wavemakers as needed based on coral selection, aquascape shape, and desired flow pattern.
• ReefMat option: The ReefMat-ready sump makes automatic mechanical filtration a straightforward upgrade path.
• 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 G3 Series Video

Setup and Installation Notes

• Assemble the cabinet first: Build and level the white cabinet according to Red Sea’s instructions before placing the aquarium on top.
• Plan the full equipment package: Select the return pump, skimmer, lighting, heater, and flow equipment before filling the system.
• Install plumbing and sump components: Confirm the overflow, downflow, ReefGate valve, return plumbing, sump, and ReefATO+ components are correctly positioned.
• Freshwater leak test: Test the aquarium and sump with freshwater before final saltwater setup to verify plumbing and water path operation.
• Tune the drain slowly: Adjust the ReefGate valve in small increments until downflow and sump operation are quiet and stable.
• Use RO/DI water: Use RO/DI water for saltwater mixing and top-off to support stable reef chemistry.
• Cycle before livestock: Allow biological filtration to establish before adding fish or corals.

What’s Included

• Ultra-clear rimless glass aquarium
• White marine-spec plywood cabinet with leveling feet
• 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.