Red Sea REEFER MAX 200 G3+ Aquarium System – 42 Gallons

A Premium, Fully Equipped Reef Aquarium with Advanced Smart Control

The Red Sea REEFER MAX 200 G3+ combines exceptional aquarium craftsmanship, premium reefkeeping equipment, and intelligent automation into one complete saltwater aquarium system.

Featuring a 41.7-gallon ultra-clear glass display, an 11.1-gallon sump, and Red Sea's ReefControl Pro technology, the REEFER MAX 200 G3+ is designed for reefkeepers who want a compact, beautifully equipped aquarium with coordinated equipment and simplified management.

The MAX configuration includes ReefLED G2 lighting, ReefWave circulation, ReefRun return pump, ReefMat automatic filtration, DC protein skimmer, and integrated monitoring and automatic top-off—all designed to work together through Red Sea's ReefBeat ecosystem.

Whether you're creating a colorful mixed reef, a coral-focused aquarium, or a stunning saltwater display, the REEFER MAX 200 G3+ delivers premium performance in a manageable footprint.

Key Features

• 52.8 Gallons Total System Volume – 41.7-gallon display with 11.1-gallon sump

• Ultra-Clear Glass Construction – Reinforced eurobracing with premium glass

• ReefControl Pro Controller – Smart monitoring with included pH and temperature probe

• 1 × ReefLED G2 115 Light – High-performance coral-focused lighting

• 1 × ReefWave 25 Pump – Wide cross-flow circulation up to 1,980 GPH

• ReefRun G2 4000 Return Pump – Adjustable DC return flow

• ReefMat 250 Roller Filter – Automatic mechanical filtration for reduced maintenance

• REEFER DC 300 Protein Skimmer – Efficient organic waste removal with self-leveling technology

• Digital Automatic Top-Off – Water-level management with temperature monitoring

• Slide-Out Control Panel 25 – Organized, accessible electronics

• Up to 5-Year Manufacturer Warranty – With qualifying registration

Advanced ReefControl Pro Technology

The G3+ generation introduces Red Sea's ReefControl Pro, providing centralized smart monitoring and equipment management.

Through the ReefBeat app, compatible Red Sea devices can be monitored and controlled directly from your smartphone.

The included ReefControl Pro system features:

• ReefSense pH and temperature probe

• Digital ATO module with integrated temperature sensor

• Support for up to five additional compatible ReefSense probes and sensors

• Connections for two compatible 12V DC devices

• ReefBeat connectivity

This connected system allows reefkeepers to monitor important aquarium conditions and expand automation as their reef develops.

Premium Ultra-Clear Glass & Reinforced Construction

The REEFER MAX 200 G3+ features a stunning ultra-clear glass display designed to showcase vibrant corals, fish, and aquascaping.

The aquarium uses 10mm front and bottom glass, 12mm side glass, and 8mm rear glass, bonded with high-quality euro-silicone.

Reinforced eurobracing provides structural support while maintaining a sleek, modern appearance.

The reinforced cabinet combines contemporary styling with practical access to filtration equipment and controls.

Redesigned High-Flow Plumbing

The G3+ platform features redesigned hydrodynamic plumbing for improved water movement and efficiency.

A high-precision gate valve provides fine overflow adjustments, helping maintain quiet and consistent operation.

A single 25mm return outlet distributes water back into the aquarium through the included ReefRun G2 4000 return pump.

Complete Reef-Ready Equipment Package

ReefLED G2 115 Lighting – 1 Included

The Red Sea ReefLED G2 115 provides powerful, coral-focused lighting across the display.

ReefBeat connectivity allows convenient customization of lighting intensity, color settings, and daily schedules.

ReefWave 25 Circulation Pump – 1 Included

The ReefWave 25 delivers up to 1,980 GPH of broad cross-flow circulation.

Customizable water movement helps distribute flow throughout the aquarium, supporting fish and corals while reducing stagnant areas.

ReefRun G2 4000 Return Pump – 1 Included

The DC-powered ReefRun G2 4000 provides adjustable return flow from approximately 530 to 1,060 GPH.

ReefBeat integration allows convenient flow adjustments and coordination with compatible aquarium routines.

ReefMat 250 Automatic Roller Filter

The ReefMat 250 automatically advances its filter fleece to remove suspended waste and debris.

This helps maintain consistent mechanical filtration while reducing the maintenance associated with traditional filter socks.

REEFER DC 300 Protein Skimmer

The included REEFER DC 300 efficiently removes dissolved organic waste from aquarium water.

Featuring approximately 265 GPH water flow and 130 GPH air flow, it provides efficient skimming and aeration.

Self-leveling technology helps maintain consistent operation and reduce the risk of excessive skimming.

Integrated Digital Automatic Top-Off

The digital ATO module automatically replaces evaporated freshwater to help maintain consistent water levels and salinity.

An integrated temperature sensor provides additional monitoring through ReefControl Pro.

Versatile REEF-SPEC Sump

The included 11.1-gallon REEF-SPEC sump is designed to accommodate the system's filtration equipment.

Its flexible layout includes an adjustable skimmer chamber, integrated bubble trap, and refugium divider.

Convenient Cabinet & Equipment Management

The modern cabinet provides convenient access to the sump and filtration equipment.

An included Slide-Out Control Panel 25 offers an organized mounting location for compatible electronics, keeping equipment accessible for setup and maintenance.

What's Included

• REEFER 200 G3+ ultra-clear glass aquarium

• Reinforced aquarium cabinet

• REEF-SPEC sump and plumbing

• ReefControl Pro Controller

• ReefSense pH and temperature probe

• Digital ATO module with integrated temperature sensor

• 1 × ReefLED G2 115 lighting fixture

• 1 × ReefWave 25 circulation pump

• 1 × ReefRun G2 4000 return pump

• 1 × ReefMat 250 automatic roller filter

• 1 × REEFER DC 300 protein skimmer

• 1 × Slide-Out Control Panel 25

Aquarium Specifications

Specification	Details
Manufacturer	Red Sea
Model	REEFER MAX 200 G3+
Display Volume	41.7 Gallons
Sump Volume	11.1 Gallons
Total System Volume	52.8 Gallons
Display Dimensions	23.6" L × 22.6" W × 20.9" H
Overall System Height	55.1"
Front Glass Thickness	10mm (0.39")
Side Glass Thickness	12mm (0.47")
Bottom Glass Thickness	10mm (0.39")
Rear Glass Thickness	8mm (0.31")
Glass Type	Ultra-Clear Glass
Bracing	Eurobrace
Return Outlets	1 × 25mm
Return Pump Configuration	Single
Included Controller	ReefControl Pro
Available Cabinet Colors	Black or White
Manufacturer Warranty	Up to 5 Years

Manufacturer Warranty

Red Sea provides a standard 3-year manufacturer warranty on REEFER G3 aquariums.

Register your new aquarium within 90 days of purchase to receive an additional two years of coverage at no extra cost, for up to five years total.

Warranty coverage is subject to Red Sea's terms and conditions.

Build Your Dream Reef with Lush Corals

At Lush Corals, we understand the importance of selecting quality equipment and livestock for your aquarium.

Whether you're creating your first premium reef or upgrading an established system, we're here to help you make the most of your Red Sea REEFER MAX 200 G3+.