Description
Red Sea REEFER G3 Aquarium System 750
Premium Reef Aquarium Systems Designed for Serious Reef Keepers
The all-new Red Sea REEFER G3 Series delivers the perfect balance of elegant design, advanced engineering, and reef-ready functionality. Designed for hobbyists who demand reliability, performance, and flexibility, the REEFER G3 range provides the ultimate foundation for thriving coral reef aquariums.
Whether you are building your first marine setup or upgrading to a high-end SPS-dominated reef system, the REEFER G3 combines ultra-clear glass, professional-grade filtration, intelligent water management, and seamless integration with Red Sea’s complete smart reef ecosystem.
Built with enhanced structural reinforcement, upgraded plumbing, and improved circulation performance, the Generation 3 REEFER series sets a new benchmark for modern reef aquariums.
Why Choose the Red Sea REEFER G3?
Ultra-Clear Premium Glass Construction
REEFER G3 aquariums are constructed from ultra-clear glass with increased thickness of up to 19mm (0.75”) for exceptional clarity, strength, and long-term durability. Models 425 and above feature euro-bracing for additional structural support, while smaller models maintain a sleek rimless design with polished beveled edges for a modern, minimalist appearance.
Features:
- Ultra-clear low iron glass
- Increased glass thickness
- Euro-bracing on larger models
- Rimless contemporary design
- Smooth beveled glass edges
Reinforced Marine-Spec Cabinetry
The REEFER G3 cabinets have been redesigned with enhanced structural reinforcement and marine-spec materials to provide superior support and long-lasting durability in demanding saltwater environments.
Features:
- Reinforced cabinet construction
- Moisture-resistant marine-grade finish
- Precision-engineered support system
- Available in Black or White finishes
- Clean modern furniture-grade appearance
Advanced REEF-SPEC Sump System
Each REEFER G3 system includes a professional-grade REEF-SPEC sump designed for optimal filtration efficiency, easy maintenance, and flexible equipment installation.
The redesigned sump layout improves water management while providing dedicated areas for filtration equipment, skimmers, reactors, and optional reef automation accessories.
Features:
- Professional reef sump filtration
- ReefMat-ready filtration chamber
- Optimised water flow management
- Easy equipment access
- Dedicated filtration compartments
- Optional utility basket on selected models
High-Performance Water Circulation
The REEFER G3 introduces a hydrodynamically optimised piping system with up to 50% improved water circulation compared to previous generations. Enhanced flow dynamics improve oxygenation, nutrient export, and overall reef health.
Features:
- Up to 50% improved circulation
- Redesigned return piping
- Improved flow efficiency
- Enhanced oxygen exchange
- Better nutrient transport
- Optimised reef health support
Silent Overflow & Precision Plumbing
The advanced overflow system delivers near-silent operation while maintaining highly efficient surface skimming and stable water levels. Precision valve control allows accurate tuning for quiet and reliable performance.
Features:
- Silent downflow overflow system
- Precision control valve
- Efficient surface skimming
- Stable water level management
- Quiet day-to-day operation
Fully Integrated Smart Reef Ecosystem
The REEFER G3 range is designed to work seamlessly with Red Sea’s smart reef technology ecosystem through the ReefBeat platform, allowing simplified monitoring, automation, and equipment control.
Compatible equipment includes:
- ReefLED G2 lighting
- ReefWave circulation pumps
- ReefRun return pumps
- ReefMat fleece filters
- ReefATO+ automatic top-off systems
- DC REEFER protein skimmers
- ReefRun Controller
Features:
- ReefBeat app compatibility
- Smart automation support
- Integrated equipment management
- Simplified reef maintenance
- Remote monitoring capabilities
REEFER G3 Model Range
Standard REEFER G3 Models
- REEFER 170 G3
- REEFER 200 G3
- REEFER 250 G3
- REEFER 300 G3
- REEFER 350 G3
- REEFER 425 G3
- REEFER 525 G3
- REEFER 625 G3
- REEFER 750 G3
REEFER G3 Configuration Options
REEFER G3
Aquarium system only – ideal for hobbyists who want to customise their own reef equipment and setup.
REEFER G3 Deluxe
Includes Red Sea ReefLED G2 lighting systems and mounting hardware for a complete premium lighting solution.
REEFER G3 MAX
The ultimate all-in-one reef aquarium package including:
- ReefLED G2 lighting
- DC REEFER protein skimmer
- ReefWave circulation pumps
- ReefRun return pump
- ReefRun Controller
- ReefMat automatic fleece filter
- ReefATO+ smart auto top-off system
- Slide-out control panel
- Utility accessories
The MAX series delivers a professionally matched reef system designed for optimal performance and simplified installation.
Perfect For
- SPS Reef Aquariums
- LPS Reef Systems
- Mixed Reef Tanks
- Saltwater Fish Aquariums
- Coral Reef Displays
- Smart Reef Automation Systems
- Premium Home & Office Aquariums
Key Benefits
- Premium reef-ready aquarium system
- Exceptional ultra-clear glass clarity
- Enhanced structural durability
- Quiet and efficient plumbing
- Professional sump filtration
- Smart reef ecosystem compatibility
- Modern rimless aquarium design
- Easy equipment integration
- Ideal for beginner to advanced reef keepers
Red Sea REEFER G3 Dimensions & Specifications Table
| Model | Display Tank Dimensions (L x W x H) | Total System Height | Display Volume | Total System Volume | Sump Volume | Glass Thickness | Rim Type |
|---|---|---|---|---|---|---|---|
| REEFER 170 G3 | 60 x 57.5 x 51 cm | 137 cm | 130L | 170L | 40L | 10-12mm | Rimless |
| REEFER 200 G3 | 60 x 57.5 x 53 cm | 140 cm | 158L | 200L | 42L | 10-12mm | Rimless |
| REEFER 250 G3 | 90 x 50 x 53 cm | 140 cm | 200L | 250L | 50L | 12mm | Rimless |
| REEFER 300 G3 | 90 x 57.5 x 55 cm | 142 cm | 246L | 300L | 54L | 12mm | Rimless |
| REEFER 350 G3 | 120 x 50 x 53 cm | 140 cm | 275L | 350L | 75L | 12-15mm | Rimless |
| REEFER 425 G3 | 120 x 60 x 55 cm | 142 cm | 343L | 434L | 91L | Up to 15mm | Eurobraced |
| REEFER 525 G3 | 150 x 60 x 55 cm | 142 cm | 453L | 525L | 72L | Up to 19mm | Eurobraced |
| REEFER 625 G3 | 150 x 65 x 60 cm | 148 cm | 500L | 625L | 125L | Up to 19mm | Eurobraced |
| REEFER 750 G3 | 180 x 65 x 60 cm | 148 cm | 600L | 750L | 152L | Up to 19mm | Eurobraced |
| REEFER S-550 G3 | 150 x 68 x 60 cm | 153 cm | 440L | 550L | 110L | 19mm | Eurobrace + Bottom Brace |
| REEFER S-700 G3 | 180 x 68 x 60 cm | 153 cm | 570L | 700L | 130L | 19mm | Eurobrace + Bottom Brace |
| REEFER S-850 G3 | 210 x 68 x 65 cm | 153 cm | 700L | 850L | 150L | 19mm | Eurobrace + Bottom Brace |
| REEFER S-1000 G3 | 240 x 68 x 65 cm | 153 cm | 830L | 1000L | 170L | 19mm | Eurobrace + Bottom Brace |
| Peninsula 350 G3 | 120 x 65 x 60 cm | 153 cm | 300L | 350L | 50L | Up to 15mm | Eurobraced |
| Peninsula 500 G3 | 150 x 68 x 60 cm | 153 cm | 420L | 500L | 80L | 19mm | Eurobraced |
| Peninsula S-700 G3 | 180 x 68 x 65 cm | 153 cm | 570L | 700L | 130L | 19mm | Eurobrace + Bottom Brace |
| Peninsula S-950 G3 | 240 x 68 x 65 cm | 153 cm | 780L | 950L | 170L | 19mm | Eurobrace + Bottom Brace |
Additional information
| Model | G3, G3 Deluxe, G3 Max Bundle |
|---|---|
| Colour | Black, White |

























