The Red Sea REEFER™ 350 G3 is one of the most popular models in the REEFER line, offering a spacious 90.3-gallon total capacity with a generous 4-foot length. This stunning rimless system is the ideal canvas for experienced hobbyists who demand a large aquascaping area, a clean aesthetic, and the integration of cutting-edge smart technology.

Built on the G3 platform, the REEFER 350 is quiet, high-performing, and seamlessly compatible with the Red Sea smart ecosystem, all controlled via the ReefBeat™ App.

G3 Key Features

• Integrated ReefATO+ System: The G3 models include the cutting-edge, app-controlled ReefATO+ as standard. This highly reliable 3-in-1 smart device ensures:
• Stable Salinity via a precise Auto Top-Off system (solid-state sensor).
• Accurate digital Temperature Monitoring.
• Highly sensitive Leak Detection (titanium probes).
• Next-Level Water Management: The plumbing system is fully redesigned for superior quietness and efficiency.
• ReefGate™ High-Precision Valve: A bespoke gate valve on the main downpipe allows for minute, easy adjustments, guaranteeing stable water levels and achieving near-silent operation.
• Optimized Flow & Dual Returns: Features dual side-facing return outlets and hydrodynamically superior piping to deliver up to 50% more water circulation and optimal water distribution throughout the long display tank.
• Rimless, Ultra-Clear Glass: Enjoy vibrant, distortion-free viewing of your reef through thick, beveled-edge glass, engineered for a modern, sleek look.

• ReefMat-Ready Sump: The professional REEF-SPEC glass sump features a dedicated mechanical filtration compartment perfectly sized for plug-and-play installation of a Red Sea ReefMat automatic fleece roller filter (sold separately) or standard filter cups/media.
• Fortified Cabinet: A sleek, marine-spec cabinet constructed from extra-fortified laminated plywood with leveling feet ensures long-term stability and moisture resistance.
• Assembly-Ready Plumbing: Includes all pre-cut, quick-connect piping, eliminating the need for messy gluing or cutting during setup.

REEFER 350 G3 Specifications