Red Sea has been building aquariums for years, delivering high-quality, thoughtfully engineered systems that make reefing easier and more enjoyable. The REEFER G3 series is a top choice for hobbyists who want a premium rimless aquarium with the flexibility to choose their own filtration, lighting, and equipment. Each system offers a strong, reef-ready foundation with smart features and a clean, modern design.
The Red Sea REEFER Peninsula 350 G3 is a rimless, ultra-clear glass reef-ready aquarium system built in a peninsula “room divider” layout for three-side viewing. It includes Red Sea’s updated ReefGate high-precision valve for near-silent tuning, improved water management with side-mounted dual return outlets for better flow down the length of the tank, and a reef-spec sump designed to be ReefMat-ready (removable mechanical filtration section).
The G3 Peninsula cabinets are marine-spec and extra-fortified, and can be installed with the doors on either the left or right side for best access. All REEFER Peninsula G3 models include the ReefATO+ system (ATO + temperature monitor + leak detector).
Red Sea REEFER Peninsula 350 G3 Aquarium System
- 73.4 Gallon Rimless Glass Display
- Glass Sump Compatible with ReefMat and REEFER DC Skimmers
- Ready-to-Use Plumbing w/ New ReefGate Flow Valve
- ReefATO+ Auto Top Off System Included
- Choice of Black or White Marine-Spec Stand
Specs (REEFER Peninsula 350 G3)
Display tank dimensions (L × W × H): 37.8" × 25" × 23.6"
Total system height (with cabinet): 63"
Display volume: 73.4 gal (≈ 278 L)
Total system volume: 93 gal (≈ 350 L)
Sump volume: 19.7 gal (≈ 75 L)
Glass thickness: 0.59" (≈ 15 mm)
Tank style: Rimless peninsula (Peninsula 350 is rimless; larger peninsula models are euro-braced)
Overflow / tuning: Downflow with ReefGate precision valve
Returns: Side-mounted dual return outlets
Cabinet: Extra-fortified marine-spec laminated plywood; doors can mount left or right
Included ATO: ReefATO+ included
Sump filtration section: Mechanical filtration compartment removable / ReefMat-ready
