Red Sea
Red Sea Reefer 300 G3
Red Sea Reefer 300 G3
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Red Sea REEFER 300 G3 – All-In-One Premium Reef System
The Red Sea REEFER 300 G3 is designed for reef keepers who want serious display volume, refined engineering, and turnkey integration in one system. With a display tank capacity of approximately 65 gallons (246 L) and a total system volume of nearly 79 gallons (300 L), including the sump and plumbing, this model offers expansive aquascaping real estate while maintaining a compact footprint.
Built with ultra-clear, low-iron rimless glass and housed in a marine-spec cabinet with precise levelling feet, the REEFER 300 G3 is engineered for performance and longevity. Upgraded features include a hydrodynamically optimized plumbing layout that boosts water turnover by up to 50%, the ReefGate precision downflow valve for near-silent operation, and a down-flow system designed to minimize turbulence and noise.
The built-in REEF-SPEC sump offers pre-plumbed filtration and a dedicated mechanical chamber, media bay, and return pump zone—giving you a professional setup from the start. With its modern design, advanced infrastructure, and large viewing window, it’s ideal for lush mixed coral systems, LPS/soft coral gardens, or stepping into higher-end SPS territory.
Technical Specifications
| Specification | Data |
| Display Volume | ~65 gallons / 246 L |
| Total System Volume (with sump) | ~79 gallons / 300 L |
| Display Dimensions (Approx.) | ~35.4″ L × 22.6″ W × 21.7″ H |
| Glass Type & Thickness | Ultra-clear low-iron rimless glass |
| Cabinet / Build | Marine-spec plywood cabinet with epoxy-finish doors |
| Filtration System | Pre-plumbed sump with mechanical sock chamber, media bay, return zone |
| High-End Features | Hydrodynamic plumbing, silent downflow, dual return outlets |
| Ideal For | Mixed reefs, LPS and soft corals, advanced setups |
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