REEFER S-550 G2+ (118 Gallon)

** This is a Brand New in Crate leftover unit.  We will include the new G3 Gate valve as well with purchase.  

Red Sea REEFER-S 550 G2+ Aquarium, Stand and Sump System

The Red Sea REEFER-S 550 G2+ is a premium reef-ready aquarium system designed for reef keepers who want extra depth, substantial water volume, and a clean, modern presentation without moving into an oversized footprint.

With a 47.3" long x 26.8" deep x 25.6" high display, the REEFER-S 550 provides significantly more front-to-back aquascaping space than many traditional four-foot aquariums. The added depth makes it easier to create layered rockwork, open swimming areas, and a more natural reefscape while maintaining excellent viewing from the front and sides.

The REEFER-S series combines Red Sea's ultra-clear glass aquarium construction with a reinforced marine-spec cabinet, aluminum internal frame, integrated sump filtration, precision plumbing, and dedicated equipment management.

Key Features

• 145.1-gallon total system volume
• 118.4-gallon display aquarium
• Extra-deep 26.8" footprint for enhanced aquascaping
• 19mm / 3/4" ultra-clear glass
• Reinforced aluminum cabinet superstructure
• Integrated reef-ready sump filtration
• High-precision downflow valve for quiet operation
• ReefMat-ready filtration compartment
• Adjustable skimmer chamber
• Dedicated refugium space
• Slide-out equipment control panel
• ReefATO+ automatic top-off system included
• Available in Black or White
• Eligible for Red Sea's extended warranty when registered according to manufacturer requirements

Aquarium Features

• Ultra-clear front and side glass provides excellent clarity and an unobstructed view of the aquarium.
• 19mm / 3/4" glass construction provides the strength required for the larger dimensions of the REEFER-S platform.
• The REEFER-S design features an elegant internal frame for additional structural reinforcement while maintaining Red Sea's clean, contemporary appearance.
• Extra 26.8" front-to-back depth provides additional room for creative aquascaping and greater separation between the rockwork and viewing panels.
• Central overflow design keeps plumbing discreet while providing effective surface skimming.
• Removable overflow comb simplifies cleaning and routine maintenance.
• Assembly-ready plumbing eliminates the need for gluing during normal installation.
• Red Sea's high-precision downflow valve allows fine adjustment of the drain flow for quiet operation.

Cabinet & Equipment Management

• Marine-spec cabinet is reinforced with a robust aluminum internal superstructure for increased strength and long-term durability.
• Moisture-resistant cabinet construction is designed specifically for use beneath a marine aquarium.
• Dedicated slide-out control panel provides an organized location for controllers, power supplies, dosing equipment, and other aquarium electronics.
• Equipment compartments provide generous space for filtration and reef-system hardware while keeping equipment concealed beneath the aquarium.
• Integrated cable-management provisions help maintain a clean and organized installation.

Sump Filtration System Features

• Large in-cabinet sump provides approximately 26.7 gallons of filtration volume.
• Removable mechanical filtration compartment is designed for compatibility with Red Sea ReefMat automatic filter rollers.
• Traditional mechanical filtration options can also be used depending on the chosen system configuration.
• Adjustable-height skimmer chamber accommodates a wide variety of protein skimmers.
• Removable sump divider allows part of the sump to be configured as a dedicated refugium.
• Bubble-management and baffle system helps maintain stable water levels between sump sections.
• High-precision drain valve provides fine control over overflow flow and helps maintain near-silent operation.
• Integrated return chamber provides space for the return pump and additional equipment.

ReefATO+ Automatic Top-Off

The REEFER-S 550 G2+ includes Red Sea's ReefATO+, providing an integrated automatic top-off and monitoring solution.

ReefATO+ combines:

• Automatic freshwater top-off
• Precision water-level sensing
• Temperature monitoring
• Leak detection
• Smartphone connectivity through the ReefBeat ecosystem

This helps maintain stable salinity while also providing additional monitoring and protection for the aquarium system.

Tank Specifications

• Display Dimensions: 47.3" L x 26.8" W x 25.6" H
  (120 x 68 x 65 CM)
• Display Water Volume: 118.4 gallons (448L)
• Glass Thickness: 19mm / 0.75"
• Front Glass: Ultra-clear
• Side Glass: Ultra-clear
• Total System Volume: 145.1 gallons (549L)

Sump Specifications

• Sump Water Volume: Approximately 26.7 gallons (101L)
• Mechanical Filtration: ReefMat-ready
• Adjustable Skimmer Chamber: Yes
• Refugium Section: Yes
• Automatic Top-Off: ReefATO+ included

System Specifications

• Total System Height: Approximately 60.2"
• Cabinet Construction: Marine-spec plywood cabinet with reinforced aluminum superstructure
• Control Panel: Slide-out control panel included
• Available Cabinet Colors: Black or White

What's Included

• Red Sea REEFER-S 550 G2+ Aquarium
• Reinforced Marine-Spec Cabinet
• Aluminum Internal Cabinet Superstructure
• Pre-configured Sump Filtration System
• ReefMat-Ready Mechanical Filtration Compartment
• Adjustable Skimmer Chamber
• Removable Refugium Divider
• High-Precision Downflow Valve
• Return Plumbing
• ReefATO+ Automatic Top-Off and Monitoring System
• Slide-Out Equipment Control Panel
• All Required Aquarium Plumbing Components

Please Note: Return pump, protein skimmer, lighting, circulation pumps, and ReefMat are not included with the standard REEFER-S 550 G2+ system unless specifically stated as part of a bundle.