RED SEA - Reefer 425 G3 Deluxe - Black - 433L - 2 ReefLED 115 and 2 stems

RED SEA Reefer 425 G3 Deluxe Black Reef Aquarium: a premium format for a balanced marine project

The RED SEA Reefer 425 G3 Deluxe Black was designed for those seeking a high-end reef aquarium that offers a striking visual presence without becoming too cumbersome for everyday use. Measuring 120 cm long , 60 cm wide , and 55 cm high , it offers particularly appealing proportions for creating a spacious, structured, and natural aquascape. Its total volume of 433 liters already provides ample room for arranging rocks, distributing colonies, and offering fish a comfortable swimming area. This size lends a real sense of seriousness to the reef project. The overall effect is more stable, more mature, and far more impressive than a more compact tank.

Deluxe version with 2 ReefLED 115s and 2 brackets: coherent and well-integrated reef lighting

This Deluxe version comes with two ReefLED 115 lights and two mounting brackets , a coherent configuration to span the entire length of the tank with a clean and balanced presentation. On a 120cm reef aquarium, having lighting already designed for the tank's dimensions provides real convenience. The installation is more legible, the image remains crisp, and the overall look is modern, without the need for a separate suspension solution. The result is visually harmonious, with the aquascape beautifully highlighted and a presentation that immediately gives the system a premium, sophisticated, and well-finished appearance.

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

The Red Sea G3 series is more than just a cosmetic update. The entire design has been revamped to make the aquarium more user-friendly, easier to set up, and more reliable in the long run. The ReefATO+ is now included, helping to maintain a constant water level and stable salinity—two essential parameters in a marine aquarium. This 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 generally more pleasant system for everyday use. The whole package appears better thought out, more refined, and more cohesive for a serious reef aquarium project.

Ultra-clear glass tank, 12 to 15 mm thick, with internal rim: a clean and reassuring structure.

The Reefer 425 G3 Deluxe features an ultra-clear glass tank that immediately highlights the contours of the aquascape, the colors of the corals, and the depth of the reef landscape. The front is made of 12mm glass , while the sides are 15mm . The bottom and back are also 12mm glass , giving the tank a solid and substantial structure for its size. The beveled edges enhance the premium finish, while the internal bracing improves the overall rigidity of the tank. The result is clean, elegant, and visually very appealing, with a clear view of the reef that truly showcases the tank.

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

The cabinet of the RED SEA Reefer 425 G3 Deluxe Black contributes significantly to the overall perceived quality. 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 particularly useful when setting up an aquarium of this type. Its black finish provides a more striking, contemporary, and particularly elegant visual presence, ideal for highlighting the premium nature of the tank. The entire setup maintains a truly sophisticated feel, with a clean and understated presentation that perfectly complements the high-end positioning of the system.

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 focused on 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 noise. Their rectangular inlet profile further improves the flow. In use, the system becomes more discreet, smoother, and much more pleasant to live with. This feeling of control and cleanliness truly transforms the daily experience.

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 Deluxe Black was designed as a premium base, capable of supporting a demanding reef project over the long term. Its Deluxe version, with two ReefLED 115 lights and two mounting brackets, already provides true visual and technical coherence, while allowing the freedom to choose the rest of the equipment according to individual preferences. The circulation pump, main pump, skimmer, ReefMat, and sliding control panel are not included as standard, allowing for genuine customization of the setup. With its ultra-clear tank, robust structure, modern sump, elegant black finish, and the improvements specific to the G3 generation, this model lays a particularly solid foundation for a reef aquarium that is as stylish as it is high-performing.