Red Sea Reefer Max G3 425 Aquarium
Red Sea Reefer Max 425 G3 – Fully Equipped Smart Reef System
A 425 L fully equipped, premium plug-and-play reef system built for advanced coral growth, powerful performance, and seamless automation.
The Red Sea Reefer Max 425 G3 takes the trusted Reefer 425 G3 foundation and equips it with Red Sea’s entire ecosystem of smart lighting, wave circulation, filtration, skimming, return pump and automation — delivering a complete professional-level reef system straight out of the box.
Every included component is perfectly matched and fully integrated through the ReefBeat® App, allowing synchronised lighting, wave patterns, feed cycles, maintenance modes, alerts and more. It’s the ultimate choice for reefkeepers who want high-end performance with zero equipment-matching stress.
Key Lifestyle Benefits
Complete Plug-and-Play Convenience – A full Red Sea system including lights, return pump, skimmer, ReefMat, gyre pumps and smart ATO.
Deep, Powerful Lighting & Flow – Dual ReefLED G2 115 units and dual ReefWave 25 gyre pumps provide optimal PAR and wide, evenly distributed circulation for mixed and SPS reefs.
Advanced Smart Automation – ReefRun, ReefWave, ReefMat, ReefATO+ and ReefLED all operate through the ReefBeat® App with scheduling, alerts, safety blocks and more.
Silent G3 Plumbing System – Red Sea’s upgraded hydrodynamic plumbing provides smooth, quiet operation, with the ReefGate valve for precision tuning.
High-Capacity Filtration – Includes the ReefMat 500 automatic fleece roller and the RSK DC 600 Skimmer, ensuring pristine water quality in high-bioload environments.
What’s Included (Model-Specific Equipment)
| Component | Model / Description |
|---|---|
| Lighting | 2 × ReefLED G2 115 |
| Circulation Pumps | 2 × ReefWave 25 |
| Return Pump | ReefRun G2 6000 DC return pump |
| Protein Skimmer | RSK DC 600 |
| Mechanical Filtration | ReefMat 500 automatic filter roller |
| Top-Off System | ReefATO+ smart ATO with temp & leak sensors |
| Control & Organisation | Slide-Out Control Panel 60 |
| Smart Ecosystem | Full ReefBeat® App automation |
Technical Specifications
| Specification | Details |
|---|---|
| Total System Volume | ~425 L |
| Display Tank Volume | ~350 L |
| Sump Volume | ~75 L |
| Display Dimensions (L×W×H) | 120 × 57.5 × 60 cm |
| Total System Height | ~150–155 cm |
| Front Glass | 12 mm ultra-clear |
| Side Glass | 12 mm ultra-clear |
| Base Glass | 12 mm |
| Reinforcement | Euro-Brace (G3 feature) |
| Warranty | 3 years (extendable to 5 years) |
Who Is It For?
-
Reefkeepers who want a large, fully equipped smart reef system
-
Hobbyists running mixed or SPS-heavy reefs
-
Aquarists wanting high flow, strong illumination and advanced automation
-
Anyone wanting a premium plug-and-play solution with no equipment guesswork
Looking for the Reef-Ready Version?
If you prefer to choose your own lighting, skimmer, return pump and wave makers, explore the: Red Sea Reefer 425 G3 Aquarium
Same glass and cabinet — full flexibility to customise your equipment.
Equipment Information
ReefLED G2 Lighting
The ReefLED G2 delivers a richer, more vibrant spectrum thanks to an updated chipset. Tune the lighting from 10,000K to 23,000K, with improved 470 nm blue, enhanced UV/violet, and Red Sea’s signature REEF-SPEC Blue for exceptional coral growth and fluorescence.
Key Features:
-
Stronger REEF-SPEC output
-
Enhanced UV/violet channels
-
Easy one-scale colour & intensity programming
-
ReefBeat® app control
-
Optional anti-glare visors
-
Compact 6.1 × 5.3 × 2.2 in size
ReefRun G2 DC Return Pump
Powerful, efficient, and nearly silent, the ReefRun G2 features a 180° rotating outlet, long serviceable cable, and full smart control when paired with the ReefRun Dual Controller.
Key Features:
-
Virtually silent
-
2,000–12,000 LPH range
-
180° rotating outlet
-
Energy-efficient
-
ReefBeat® integration
Reefer DC Skimmer
The Reefer DC Skimmer features self-levelling technology to prevent overskimming and maintain optimal foam levels. Smart sensors regulate skimmer output for stability and safety.
Key Features:
-
Automatic self-levelling
-
Ultra-quiet operation
-
Smart control via ReefRun Dual Controller
-
Manual neck cleaner & drain hose
-
Superior air-water contact design
ReefWave Smart Circulation Pump
Using Gyre cross-flow technology, the ReefWave creates uniform, reef-safe flow patterns with silent operation and full ReefBeat® programmability.
Key Features:
-
Silent sine-wave motor
-
Five programmable wave modes
-
Easy maintenance design
-
Built-in Wi-Fi control
ReefMat Automatic Filter Roller
The ReefMat delivers fully automated mechanical filtration, removing waste before it breaks down. Smart sensors monitor roll usage and prevent jams.
Key Features:
-
Plug-and-play installation
-
Smart roll tracking
-
Fast fleece replacement
-
Integrated media basket
-
3,500 LPH max flow
ReefATO+ Smart Top-Off System
The ReefATO+ ensures stable water levels and salinity, while also offering temperature monitoring and leak detection via the ReefBeat® App.
Slide-Out Control Panel
Made from marine-spec laminated plywood, the slide-out control panel keeps your controllers and cables organised and accessible.
Product Information
Product Information
Shipping & Returns
Shipping & Returns





Red Sea Reefer Max G3 425 Aquarium
Red Sea Reefer Max G3 425 Aquarium
Red Sea Reefer Max 425 G3 – Fully Equipped Smart Reef System
A 425 L fully equipped, premium plug-and-play reef system built for advanced coral growth, powerful performance, and seamless automation.
The Red Sea Reefer Max 425 G3 takes the trusted Reefer 425 G3 foundation and equips it with Red Sea’s entire ecosystem of smart lighting, wave circulation, filtration, skimming, return pump and automation — delivering a complete professional-level reef system straight out of the box.
Every included component is perfectly matched and fully integrated through the ReefBeat® App, allowing synchronised lighting, wave patterns, feed cycles, maintenance modes, alerts and more. It’s the ultimate choice for reefkeepers who want high-end performance with zero equipment-matching stress.
Key Lifestyle Benefits
Complete Plug-and-Play Convenience – A full Red Sea system including lights, return pump, skimmer, ReefMat, gyre pumps and smart ATO.
Deep, Powerful Lighting & Flow – Dual ReefLED G2 115 units and dual ReefWave 25 gyre pumps provide optimal PAR and wide, evenly distributed circulation for mixed and SPS reefs.
Advanced Smart Automation – ReefRun, ReefWave, ReefMat, ReefATO+ and ReefLED all operate through the ReefBeat® App with scheduling, alerts, safety blocks and more.
Silent G3 Plumbing System – Red Sea’s upgraded hydrodynamic plumbing provides smooth, quiet operation, with the ReefGate valve for precision tuning.
High-Capacity Filtration – Includes the ReefMat 500 automatic fleece roller and the RSK DC 600 Skimmer, ensuring pristine water quality in high-bioload environments.
What’s Included (Model-Specific Equipment)
| Component | Model / Description |
|---|---|
| Lighting | 2 × ReefLED G2 115 |
| Circulation Pumps | 2 × ReefWave 25 |
| Return Pump | ReefRun G2 6000 DC return pump |
| Protein Skimmer | RSK DC 600 |
| Mechanical Filtration | ReefMat 500 automatic filter roller |
| Top-Off System | ReefATO+ smart ATO with temp & leak sensors |
| Control & Organisation | Slide-Out Control Panel 60 |
| Smart Ecosystem | Full ReefBeat® App automation |
Technical Specifications
| Specification | Details |
|---|---|
| Total System Volume | ~425 L |
| Display Tank Volume | ~350 L |
| Sump Volume | ~75 L |
| Display Dimensions (L×W×H) | 120 × 57.5 × 60 cm |
| Total System Height | ~150–155 cm |
| Front Glass | 12 mm ultra-clear |
| Side Glass | 12 mm ultra-clear |
| Base Glass | 12 mm |
| Reinforcement | Euro-Brace (G3 feature) |
| Warranty | 3 years (extendable to 5 years) |
Who Is It For?
-
Reefkeepers who want a large, fully equipped smart reef system
-
Hobbyists running mixed or SPS-heavy reefs
-
Aquarists wanting high flow, strong illumination and advanced automation
-
Anyone wanting a premium plug-and-play solution with no equipment guesswork
Looking for the Reef-Ready Version?
If you prefer to choose your own lighting, skimmer, return pump and wave makers, explore the: Red Sea Reefer 425 G3 Aquarium
Same glass and cabinet — full flexibility to customise your equipment.
Equipment Information
ReefLED G2 Lighting
The ReefLED G2 delivers a richer, more vibrant spectrum thanks to an updated chipset. Tune the lighting from 10,000K to 23,000K, with improved 470 nm blue, enhanced UV/violet, and Red Sea’s signature REEF-SPEC Blue for exceptional coral growth and fluorescence.
Key Features:
-
Stronger REEF-SPEC output
-
Enhanced UV/violet channels
-
Easy one-scale colour & intensity programming
-
ReefBeat® app control
-
Optional anti-glare visors
-
Compact 6.1 × 5.3 × 2.2 in size
ReefRun G2 DC Return Pump
Powerful, efficient, and nearly silent, the ReefRun G2 features a 180° rotating outlet, long serviceable cable, and full smart control when paired with the ReefRun Dual Controller.
Key Features:
-
Virtually silent
-
2,000–12,000 LPH range
-
180° rotating outlet
-
Energy-efficient
-
ReefBeat® integration
Reefer DC Skimmer
The Reefer DC Skimmer features self-levelling technology to prevent overskimming and maintain optimal foam levels. Smart sensors regulate skimmer output for stability and safety.
Key Features:
-
Automatic self-levelling
-
Ultra-quiet operation
-
Smart control via ReefRun Dual Controller
-
Manual neck cleaner & drain hose
-
Superior air-water contact design
ReefWave Smart Circulation Pump
Using Gyre cross-flow technology, the ReefWave creates uniform, reef-safe flow patterns with silent operation and full ReefBeat® programmability.
Key Features:
-
Silent sine-wave motor
-
Five programmable wave modes
-
Easy maintenance design
-
Built-in Wi-Fi control
ReefMat Automatic Filter Roller
The ReefMat delivers fully automated mechanical filtration, removing waste before it breaks down. Smart sensors monitor roll usage and prevent jams.
Key Features:
-
Plug-and-play installation
-
Smart roll tracking
-
Fast fleece replacement
-
Integrated media basket
-
3,500 LPH max flow
ReefATO+ Smart Top-Off System
The ReefATO+ ensures stable water levels and salinity, while also offering temperature monitoring and leak detection via the ReefBeat® App.
Slide-Out Control Panel
Made from marine-spec laminated plywood, the slide-out control panel keeps your controllers and cables organised and accessible.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Red Sea Reefer Max 425 G3 – Fully Equipped Smart Reef System
A 425 L fully equipped, premium plug-and-play reef system built for advanced coral growth, powerful performance, and seamless automation.
The Red Sea Reefer Max 425 G3 takes the trusted Reefer 425 G3 foundation and equips it with Red Sea’s entire ecosystem of smart lighting, wave circulation, filtration, skimming, return pump and automation — delivering a complete professional-level reef system straight out of the box.
Every included component is perfectly matched and fully integrated through the ReefBeat® App, allowing synchronised lighting, wave patterns, feed cycles, maintenance modes, alerts and more. It’s the ultimate choice for reefkeepers who want high-end performance with zero equipment-matching stress.
Key Lifestyle Benefits
Complete Plug-and-Play Convenience – A full Red Sea system including lights, return pump, skimmer, ReefMat, gyre pumps and smart ATO.
Deep, Powerful Lighting & Flow – Dual ReefLED G2 115 units and dual ReefWave 25 gyre pumps provide optimal PAR and wide, evenly distributed circulation for mixed and SPS reefs.
Advanced Smart Automation – ReefRun, ReefWave, ReefMat, ReefATO+ and ReefLED all operate through the ReefBeat® App with scheduling, alerts, safety blocks and more.
Silent G3 Plumbing System – Red Sea’s upgraded hydrodynamic plumbing provides smooth, quiet operation, with the ReefGate valve for precision tuning.
High-Capacity Filtration – Includes the ReefMat 500 automatic fleece roller and the RSK DC 600 Skimmer, ensuring pristine water quality in high-bioload environments.
What’s Included (Model-Specific Equipment)
| Component | Model / Description |
|---|---|
| Lighting | 2 × ReefLED G2 115 |
| Circulation Pumps | 2 × ReefWave 25 |
| Return Pump | ReefRun G2 6000 DC return pump |
| Protein Skimmer | RSK DC 600 |
| Mechanical Filtration | ReefMat 500 automatic filter roller |
| Top-Off System | ReefATO+ smart ATO with temp & leak sensors |
| Control & Organisation | Slide-Out Control Panel 60 |
| Smart Ecosystem | Full ReefBeat® App automation |
Technical Specifications
| Specification | Details |
|---|---|
| Total System Volume | ~425 L |
| Display Tank Volume | ~350 L |
| Sump Volume | ~75 L |
| Display Dimensions (L×W×H) | 120 × 57.5 × 60 cm |
| Total System Height | ~150–155 cm |
| Front Glass | 12 mm ultra-clear |
| Side Glass | 12 mm ultra-clear |
| Base Glass | 12 mm |
| Reinforcement | Euro-Brace (G3 feature) |
| Warranty | 3 years (extendable to 5 years) |
Who Is It For?
-
Reefkeepers who want a large, fully equipped smart reef system
-
Hobbyists running mixed or SPS-heavy reefs
-
Aquarists wanting high flow, strong illumination and advanced automation
-
Anyone wanting a premium plug-and-play solution with no equipment guesswork
Looking for the Reef-Ready Version?
If you prefer to choose your own lighting, skimmer, return pump and wave makers, explore the: Red Sea Reefer 425 G3 Aquarium
Same glass and cabinet — full flexibility to customise your equipment.
Equipment Information
ReefLED G2 Lighting
The ReefLED G2 delivers a richer, more vibrant spectrum thanks to an updated chipset. Tune the lighting from 10,000K to 23,000K, with improved 470 nm blue, enhanced UV/violet, and Red Sea’s signature REEF-SPEC Blue for exceptional coral growth and fluorescence.
Key Features:
-
Stronger REEF-SPEC output
-
Enhanced UV/violet channels
-
Easy one-scale colour & intensity programming
-
ReefBeat® app control
-
Optional anti-glare visors
-
Compact 6.1 × 5.3 × 2.2 in size
ReefRun G2 DC Return Pump
Powerful, efficient, and nearly silent, the ReefRun G2 features a 180° rotating outlet, long serviceable cable, and full smart control when paired with the ReefRun Dual Controller.
Key Features:
-
Virtually silent
-
2,000–12,000 LPH range
-
180° rotating outlet
-
Energy-efficient
-
ReefBeat® integration
Reefer DC Skimmer
The Reefer DC Skimmer features self-levelling technology to prevent overskimming and maintain optimal foam levels. Smart sensors regulate skimmer output for stability and safety.
Key Features:
-
Automatic self-levelling
-
Ultra-quiet operation
-
Smart control via ReefRun Dual Controller
-
Manual neck cleaner & drain hose
-
Superior air-water contact design
ReefWave Smart Circulation Pump
Using Gyre cross-flow technology, the ReefWave creates uniform, reef-safe flow patterns with silent operation and full ReefBeat® programmability.
Key Features:
-
Silent sine-wave motor
-
Five programmable wave modes
-
Easy maintenance design
-
Built-in Wi-Fi control
ReefMat Automatic Filter Roller
The ReefMat delivers fully automated mechanical filtration, removing waste before it breaks down. Smart sensors monitor roll usage and prevent jams.
Key Features:
-
Plug-and-play installation
-
Smart roll tracking
-
Fast fleece replacement
-
Integrated media basket
-
3,500 LPH max flow
ReefATO+ Smart Top-Off System
The ReefATO+ ensures stable water levels and salinity, while also offering temperature monitoring and leak detection via the ReefBeat® App.
Slide-Out Control Panel
Made from marine-spec laminated plywood, the slide-out control panel keeps your controllers and cables organised and accessible.


















