Description
Red Sea REEFER 300 G3 Deluxe – Black (incl. 2 X RL115 & arms)
The Red Sea REEFER G3 is the third generation of Red Sea’s flagship line of rimless, ultra-clear glass, reef-ready aquariums. It is designed as a perfect foundation for a thriving reef, featuring significant upgrades in water management, cabinet fortification, and integrated smart technology, making it the ideal platform for the full Red Sea smart ecosystem via the ReefBeat App.
Key Features & Upgrades (Generation 3)
Feature Category
Description
Advanced Water Management
New Hydrodynamically Superior Piping provides up to 50% more water circulation while significantly reducing energy consumption.
Silent Downflow System
Features an enlarged rectangular inlet and the new high-precision ReefGate gate flow valve for near-silent operation and easy flow regulation.
Integrated Smart ATO
All models include the ReefATO+ system, which uses a solid-state sensor to maintain stable water volume and salinity, and includes an accurate temperature monitor and a highly sensitive leak detector.
Fortified Cabinet
Constructed from marine-spec plywood with leveling feet. Models 525 and above include front aluminum supports for added strength.
ReefMat-Ready Sump
Features a dedicated, removable mechanical filtration compartment ready for a Red Sea ReefMat or standard filter socks/media cups.
Aquarium & Cabinet Specifications
Aquarium Glass: Ultra-clear, beveled-edge glass with increased thickness (up to 19 mm / 0.75″ on larger models).
Structure:
Rimless: Models REEFER 170 up to 350.
Euro-Braced: Models REEFER 425 and above feature euro-bracing for extra strength and durability.
Sump: Professional, REEF-SPEC sump design, including dedicated space for a protein skimmer, media filtration, and a chiller/hardware chamber.
Cabinet: Laminated plywood panels, epoxy painted doors, and stainless steel hinges for marine environment durability.
Available G3 Model Lines
The REEFER G3 system is available in a variety of sizes and configurations:
REEFER 170 G3
REEFER 200 G3
REEFER 250 G3
REEFER 300 G3
Total system water volume
43.6 gal
52.8 gal
64.8 gal
79.3 gal
Display tank water vol.
33.8 gal
41.7 gal
53.6 gal
65 gal
In-Cabinet sump water vol.
9.8 gal
11 gal
11 gal
15 gal
Display tank Length
23.6 ”
23.6 ”
35.4 ”
35.4 ”
Display tank width
19.7 ”
22.6 ”
19.7 ”
22.6 ”
Display tank height (excluding light unit)
20.1 ”
20.9 ”
20.9 ”
21.7 ”
Total system height (excluding light unit)
53.9 ”
55.1 ”
55.1 ”
55.9 ”
Ultra-clear front glass
0.39 ”
0.39 ”
0.47 ”
0.47 ”
Ultra-clear side glass
0.47 ”
0.47 ”
0.47 ”
0.47 ”
Bottom glass
0.39 ”
0.39 ”
0.47 ”
0.47 ”
Back glass thickness
0.31 ”
0.31 ”
0.39 ”
0.39 ”
Rim type
Rimless
Rimless
Rimless
Rimless
ReefLED advanced light system
DLX Version 1 Unit (RL G2 115)
DLX Version 1 Unit (RL G2 115)
DLX Version 2 Units (RL G2 115)
DLX Version 2 Units (RL G2 115)
Water circulation
Not included
Not included
Not included
Not included
Main system pump
Not included
Not included
Not included
Not included
NEW! Hydrodynamic piping with Gate valve
X
X
X
X
Protein Skimmer
Not included
Not included
Not included
Not included
ReefMat / NanoMat
Not included
Not included
Not included
Not included
ReefATO+ kit included
X
X
X
X
ReefATO+ Ready
ReefATO+ Ready (included)
ReefATO+ Ready (included)
ReefATO+ Ready (included)
ReefATO+ Ready (included)
Slide out control panel
Not included
Not included
Not included
Not included
Warranty Information
The REEFER G3 system comes with an initial 3-year standard warranty. This warranty is extendable to 5 years at no extra cost upon registration of the aquarium within 90 days of purchase.
