Red Sea REEFER 200 G3+ Aquarium System – 42 Gallons

A Premium, Customizable Reef Aquarium with Smart Monitoring

The Red Sea REEFER 200 G3+ combines exceptional aquarium craftsmanship, intelligent monitoring, and advanced plumbing into a premium reef-ready saltwater aquarium system.

Featuring a 41.7-gallon ultra-clear glass display, an 11.1-gallon sump, and Red Sea's ReefControl Lite technology, the REEFER 200 G3+ is ideal for reefkeepers who want a beautiful, compact aquarium with the flexibility to select their preferred equipment.

With its modern floating-style cabinet, reinforced eurobraced construction, and efficient filtration layout, this aquarium offers an excellent foundation for a colorful mixed reef, coral-focused display, or carefully planned saltwater fish aquarium.

Unlike the fully equipped MAX configuration, the standard REEFER 200 G3+ allows you to customize lighting, circulation, return flow, and filtration around your individual reefkeeping goals.

Key Features

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

• Ultra-Clear Glass Construction – Premium glass bonded with high-quality euro-silicone

• Reinforced Eurobracing – Structural support with a clean, modern appearance

• ReefControl Lite Controller Included – Smart monitoring and compatible equipment connectivity

• Digital Automatic Top-Off Included – Automatic water-level management with integrated temperature sensor

• Redesigned High-Flow Plumbing – Improved circulation efficiency with precision adjustment

• High-Precision Gate Valve – Helps maintain quiet, consistent overflow operation

• REEF-SPEC Sump – ReefMat-ready with adjustable skimmer chamber and refugium flexibility

• Modern Aquarium Cabinet – Reinforced support with an elegant floating appearance

• Customizable Equipment Configuration – Select your preferred lighting, pumps, and filtration

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

Advanced ReefControl Lite Technology

The G3+ generation introduces Red Sea's ReefControl Lite, providing a smart foundation for monitoring and managing compatible aquarium equipment.

Through the ReefBeat app, compatible Red Sea sensors and equipment can be connected for convenient aquarium management.

ReefControl Lite supports:

• Up to two compatible ReefSense probes and sensors

• One compatible 12V DC device

• ReefBeat app connectivity

• Expandable monitoring capabilities

Additional compatible probes and sensors are available separately.

Integrated Digital Automatic Top-Off

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

An integrated temperature sensor provides additional monitoring through the ReefControl ecosystem.

This convenient automation helps reduce daily maintenance while supporting a more stable reef aquarium environment.

Premium Ultra-Clear Glass & Reinforced Construction

The REEFER 200 G3+ features a beautiful ultra-clear glass display designed to showcase vibrant corals, fish, and aquascaping with excellent clarity.

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

Reinforced eurobracing provides additional structural support while maintaining the aquarium's contemporary appearance.

The cabinet provides convenient access to filtration equipment while supporting the aquarium's elegant floating-style design.

Redesigned High-Flow Plumbing

The G3+ platform features redesigned hydrodynamic plumbing engineered to improve circulation efficiency.

A high-precision gate valve provides fine adjustment of water flow through the overflow, helping maintain quiet, consistent operation.

The single 25mm return outlet supports a single return-pump configuration.

Versatile REEF-SPEC Sump

The included 11.1-gallon REEF-SPEC sump offers flexible filtration options.

Features include:

• ReefMat-ready mechanical filtration area

• Adjustable protein skimmer chamber

• Integrated bubble trap

• Slide-in refugium divider

• Space for compatible filtration equipment

What's Included

• REEFER 200 G3+ ultra-clear glass aquarium

• Reinforced aquarium cabinet

• 11.1-gallon REEF-SPEC sump

• Complete plumbing with high-precision gate valve

• ReefControl Lite Controller

• Digital ATO module with integrated temperature sensor

Equipment Sold Separately: Aquarium lighting, circulation pumps, return pump, protein skimmer, automatic roller filter, and optional monitoring probes.

Aquarium Specifications

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 can help you select the right lighting, pumps, filtration equipment, and quality livestock for your new aquarium.

Whether you're setting up your first premium reef or upgrading an established system, the Red Sea REEFER 200 G3+ provides an outstanding foundation for your next reefkeeping project.