The Red Sea REEFER S-550 G3 is a high-end, third-generation, reef-ready aquarium
system that marks the entry point into Red Sea's S-Series line. The S-Series is
characterized by its deeper and wider dimensions compared to the standard REEFER
line, along with superior structural and organizational features designed for the serious
hobbyist.
The S-550 G3 offers a large, deep canvas for elaborate aquascaping and is engineered
for maximum performance, stability, and quiet operation.
S-Series G3 Key Features:
 Deeper & Wider Dimensions: The S-550 boasts extra depth and width,
providing more rock placement options, open swimming space, and optimal
distance for coral growth.
 Aluminum Super-Structure Cabinet: The cabinet's core structure is a superior
and robust marine-spec aluminum frame, which reinforces the plywood
exterior, ensuring maximum stability and safety for the large water volume.
 Euro-Braced Ultra-Clear Glass: The REEFER S-550 G3 features Euro-
bracing along the top edge. This reinforced structure provides exceptional
strength and durability.
 Slide-Out Control Panel: The S-Series cabinet features a 60cm slide-out
control panel. This integrated, marine-spec panel offers a dedicated, organized,
and easily accessible space to mount and manage electronic equipment and
controllers.
 Integrated ReefATO+ System: The G3 models include the cutting-edge, app-
controlled ReefATO+ as standard. This highly reliable 3-in-1 smart device
ensures:
o Stable Salinity via a precise Auto Top-Off system (solid-state sensor).
o Accurate digital Temperature Monitoring.
o Highly sensitive Leak Detection (titanium probes).
 Next-Level Water Management: The plumbing system is fully redesigned for
superior quietness and efficiency.
o 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.

o 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.
 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.
 Assembly-Ready Plumbing: Includes all pre-cut, quick-connect piping,
eliminating the need for messy gluing or cutting during setup.

Aquarium Specifications:
Component Details
Total System Volume 145.1 Gallons
Display Tank Volume 118.4 Gallons
Display Tank Dimensions (L x W x H) 47.3" x 26.8" x 25.6"