RED SEA - Reefer 425 G3 - White - 433L

RED SEA Reefer 425 G3 White Reef Aquarium: a premium size for a custom marine project

The RED SEA Reefer 425 G3 White was designed for those who want a serious, elegant, and spacious reef aquarium, large enough to build a true marine project without opting for an overly imposing tank. Measuring 120 cm long , 60 cm wide , and 55 cm high , it offers a very well-balanced size for creating a spacious, clear, and natural aquascape. Its total volume of 433 liters allows for better distribution of reef zones, provides more space for fish, and ensures more stable water parameters. This volume truly transforms the ease of maintenance and the final appearance of the tank. The overall look is more mature, more balanced, and far more impressive in a living space.

Red Sea G3 range: a technical evolution designed for greater comfort and reliability

The Red Sea G3 series represents a true evolution compared to previous generations. It's not simply an aesthetic change. The entire design has been revamped to make the aquarium more user-friendly, easier to adjust, and more reassuring to maintain on a daily basis. The ReefATO+ is now included, helping to maintain a constant water level and stable salinity—two essential parameters for a marine aquarium. The G3 generation also features a ReefMat Ready sump , a redesigned overflow , a new ReefGate valve , and improved hydrodynamic piping . In practice, this translates to a smoother, quieter, and much more enjoyable system over the long term.

Ultra-clear 12-15 mm glass tank with internal rim: a robust structure that enhances the reef

The Reefer 425 G3 White features an ultra-clear glass tank that immediately showcases the aquascape, the rock formations, and the vibrant colors of the tank's inhabitants. The front panel is made of 12mm glass , while the sides are 15mm . The bottom and back are also 12mm glass , giving the tank a solid and robust structure for its size. The beveled edges further enhance the impression of quality and lend the tank a particularly refined, high-end look. Like other REEFER G3 models over 400 liters, it benefits from internal bracing that improves the overall rigidity of the structure. The visual presentation remains very clean and crisp, with excellent depth of field that instantly enhances the presence of the reef.

Marine-Spec white furniture made of marine plywood: a clean, reliable and durable base

The cabinet of the RED SEA Reefer 425 G3 White does more than simply support the tank. It's an integral part of the overall quality of the system. Made of marine plywood , it was designed to better withstand humidity and the specific stresses of a reef environment. The adjustable feet facilitate leveling, which is especially useful when setting up an aquarium of this type. Its white finish provides a bright, clean, and elegant look that easily integrates into many interiors. The whole setup maintains a truly professional feel, with a clean and understated presentation that perfectly complements the tank's premium positioning.

Optimized overflow and silent water flow: cleaner everyday operation

In a marine aquarium installed in a living room, acoustic comfort makes a real difference. Red Sea has clearly addressed this aspect with the Reefer G3 . The plumbing is concealed within a large overflow with an overflow and surface suction, equipped with wide, removable combs that are easy to clean. The downpipes have been redesigned to reduce turbulence and therefore flow noise. Their rectangular inlet profile further improves the flow's smoothness. In practice, this results in quieter operation, efficient surface suction, and an overall impression of a cleaner, better-designed, and more pleasant system to live with.

High-precision ReefGate valve and advanced hydrodynamic piping for better-controlled circulation

The Reefer 425 G3 features modernized hydraulic management for simpler adjustments and a more pleasant user experience. The new ReefGate valve , installed on the overflow, allows for much more precise flow adjustment. Once the correct balance is achieved, operation becomes significantly quieter. Simultaneously, the advanced hydrodynamic piping improves water circulation throughout the entire system. The dual-outlet configuration allows for the connection of one or two return pumps, depending on the installation plan. The total circulation system and main pump are not included, providing complete freedom to create a configuration perfectly suited to your reef project.

90-liter Reef-Spec ReefMat Ready sump: a modern and practical technical space

The Reef-Spec sump of the Reefer 425 G3 was designed to offer a clear, logical, and user-friendly technical space. With its 90-liter capacity , it provides ample room for organizing the filtration system while maintaining excellent visibility. It is Refugium-ready and ReefMat compatible , featuring a removable baffle that allows for the quick installation of a ReefMat 250, 500, or 1200. It also includes a height-adjustable skimmer compartment , micron bags , a removable media cup , and a bubble trap to prevent microbubbles from returning to the main tank. The skimmer, ReefMat, and main pump are not included, allowing for a truly customized setup.

ReefATO+ included and smart control via ReefBeat: enhanced stability for everyday use

All G3 models now come equipped with ReefATO+ , a real advantage for a marine aquarium of this size. This system helps maintain a constant water level and stable salinity , two essential parameters for the comfort of the tank's inhabitants and the overall stability of the reef. It also integrates a precise temperature probe and a high-sensitivity leak detector , further enhancing the system's safety. Control via the ReefBeat app adds a highly practical dimension for monitoring the system and keeping an eye on important parameters. For an ambitious reef project, it offers true daily convenience.

A RED SEA aquarium designed for enthusiasts who want a high-end, upgradeable base.

The RED SEA Reefer 425 G3 White was designed as a premium base, capable of supporting a demanding reef project over the long term. Its lack of included lighting provides true freedom in configuration, allowing you to choose each technical component according to your preferences. Circulation, the main pump, the skimmer, the ReefMat, the sliding control panel, and lighting are not included as standard, enabling genuine customization of the setup. With its ultra-clear tank, robust structure, modern sump, elegant white finish, and the improvements specific to the G3 generation, this model lays a particularly solid foundation for a reef aquarium that is as high-performing as it is stylish.