Red Sea Reefer G3+ 350 Peninsula Aquarium and Cabinet

Red Sea REEFER G3+ 350 Peninsula Aquarium and Cabinet

The Red Sea REEFER G3+ 350 Peninsula Aquarium and Cabinet is a premium 352-litre marine aquarium system designed to create an impressive panoramic reef display. Featuring three-sided viewing, 15mm ultra-clear glass, a reinforced marine-specification cabinet and an advanced REEF-SPEC filtration sump, this contemporary peninsula aquarium is ideal for aquarists looking to create a stunning centrepiece or room-dividing marine aquarium.

Part of Red Sea's innovative REEFER G3+ range, the Peninsula 350 combines premium aquarium engineering with elegant styling and flexible equipment options. Its 96cm length and generous 63.5cm width provide excellent aquascaping possibilities, making it particularly suitable for SPS coral reefs, LPS coral displays, mixed reef aquariums and carefully selected marine fish communities.

With integrated ReefControl Lite monitoring, automatic top-up functionality, ReefMat-ready filtration and precision water management, the REEFER G3+ 350 Peninsula provides an excellent foundation for a modern, high-performance reef aquarium.

Key Features

• 352-litre total system capacity with a 278-litre display aquarium

• Premium peninsula design for panoramic three-sided viewing

• 15mm ultra-clear glass construction

• Reinforced Euro-braced aquarium design

• Marine-specification laminated plywood cabinet

• Available in black or white cabinet finishes

• Integrated ReefControl Lite controller

• Automatic top-up module with temperature monitoring

• Advanced REEF-SPEC filtration sump

• ReefMat-ready mechanical filtration chamber

• Refugium-ready sump configuration

• Adjustable-height protein skimmer chamber

• High-precision ReefGate overflow valve

• Dual 25mm return outlets

• Single or dual return pump compatibility

• Adjustable cabinet feet for accurate levelling

• Flexible left- or right-hand cabinet door installation

• Suitable for premium marine and reef aquarium installations

Product Overview

The Red Sea REEFER G3+ 350 Peninsula Aquarium and Cabinet is designed for marine aquarists who want to create an attractive reef display while retaining the freedom to choose their preferred aquarium equipment.

Unlike conventional aquariums viewed primarily from the front, the peninsula design allows the reef to be enjoyed from both long sides and the end viewing panel.

This makes it an excellent choice for open-plan living spaces, room-divider installations or standalone marine aquarium displays.

The REEFER G3+ 350 combines reinforced aquarium construction, modern filtration technology and integrated monitoring while allowing aquarists to select their preferred lighting, water circulation, protein skimming and return pump equipment.

Premium Peninsula Aquarium Design

The REEFER G3+ 350 Peninsula features a 96cm-long aquarium with an impressive three-sided viewing arrangement.

Its generous 63.5cm width allows aquarists to create natural reef rock formations, open swimming areas, coral islands and attractive aquascapes that can be viewed from multiple angles.

The ultra-clear glass showcases marine fish, coral fluorescence and natural reef colours with excellent clarity.

A reinforced Euro-brace strengthens the aquarium while maintaining a clean, contemporary appearance.

The peninsula format makes this aquarium particularly suitable for positioning between living areas or creating an attractive focal point within a room.

Aquarium and Cabinet Construction

The Red Sea REEFER G3+ 350 Peninsula features 15mm ultra-clear glass construction and reinforced Euro-bracing for additional structural stability.

The aquarium is supported by a marine-specification laminated plywood cabinet with a floating-look aluminium support.

The cabinet features durable doors, quality hinges and adjustable feet, providing a practical foundation for the aquarium.

The cabinet doors can be configured for access from either side, helping accommodate different room layouts and installation requirements.

Available in black or white, the cabinet is designed to complement modern interiors while providing convenient access to the filtration sump and aquarium equipment.

Advanced REEF-SPEC Filtration Sump

The REEFER G3+ 350 Peninsula includes a professional REEF-SPEC filtration sump designed for efficient filtration, convenient maintenance and equipment flexibility.

The sump provides approximately 74.6 litres of filtration capacity and includes a mechanical filtration compartment with filter bags and media cups.

A removable mechanical filtration section allows installation of a compatible Red Sea ReefMat automatic roller filter.

The sump is also refugium-ready, allowing aquarists to incorporate macroalgae filtration or additional biological filtration where required.

An adjustable-height protein skimmer chamber provides flexibility when selecting and installing a suitable protein skimmer.

The sump water level can be adjusted between approximately 17cm and 23cm to suit compatible equipment.

ReefMat-Ready Mechanical Filtration

The REEFER G3+ 350 Peninsula features a removable mechanical filtration chamber designed for straightforward integration of a compatible Red Sea ReefMat system.

The standard mechanical filtration arrangement includes micron filter bags and media cups for removing suspended particles and aquarium waste.

For aquarists wanting to reduce manual filter maintenance, the system can be upgraded with a compatible automatic fleece roller filter.

The ReefMat unit is purchased separately.

Integrated ReefControl Lite Monitoring

The Red Sea REEFER G3+ 350 Peninsula includes the ReefControl Lite controller with an automatic top-up module and integrated temperature monitoring.

The automatic top-up function replaces evaporated freshwater, helping maintain a consistent aquarium water level and reducing unwanted salinity fluctuations.

The ReefControl Lite controller provides a foundation for aquarium monitoring and supports the addition of compatible Red Sea ReefSense probes, sensors and control accessories.

The controller supports up to two compatible ReefSense probes or sensors and one 12V DC device.

Additional monitoring accessories are available separately.

Precision Water Management

Red Sea's advanced water-management system is designed to provide efficient circulation between the display aquarium and filtration sump.

The high-precision ReefGate valve allows accurate adjustment of water flow through the overflow system, helping achieve smooth and quiet aquarium operation.

Dual 25mm return outlets provide flexibility for single or dual return pump installations.

The redesigned overflow system includes a removable surface skimmer and is engineered to provide efficient water circulation while helping reduce turbulence and noise.

Suitable For

The Red Sea REEFER G3+ 350 Peninsula Aquarium and Cabinet is suitable for:

• Marine aquariums

• Reef aquariums

• SPS coral systems

• LPS coral aquariums

• Mixed reef systems

• Soft coral aquariums

• Marine fish communities

• Reef aquascaping projects

• Premium home aquarium installations

• Room-divider aquarium displays

• Open-plan living spaces

• Experienced marine aquarists

• Aquarists upgrading from a smaller aquarium

• Aquarists wanting a compact three-sided aquarium display

The aquarium offers space for a variety of suitable marine livestock, although stocking should always be based on adult fish size, temperament and compatibility.

Recommended Equipment

The REEFER G3+ 350 Peninsula is supplied as an aquarium and cabinet system, giving customers flexibility when selecting their preferred reef equipment.

Recommended equipment includes:

• High-performance LED reef aquarium lighting

• Red Sea ReefRun G2 6000 return pump or suitable alternative

• Appropriately sized protein skimmer

• Compatible Red Sea ReefMat automatic roller filter

• Reef aquarium wavemakers or gyre pumps

• Marine aquarium heating equipment

• Reverse osmosis freshwater reservoir

• Automatic dosing equipment

• Reef aquarium salt

• Marine aquarium rock and substrate

• Additional ReefSense monitoring accessories where required

Equipment selection should be based on the intended livestock, coral requirements, stocking density and overall aquarium configuration.

Aquarium Specifications

Product: Red Sea REEFER G3+ 350 Peninsula Aquarium and Cabinet

Brand: Red Sea

Range: REEFER Peninsula 350 G3+

Aquarium Type: Marine / Reef Aquarium

Aquarium Design: Peninsula / Three-Sided Viewing

Total System Volume: 352 litres

Display Aquarium Volume: 278 litres

Filtration Sump Volume: 74.6 litres

Aquarium Length: 96cm

Aquarium Width: 63.5cm

Aquarium Height: 60cm

Overall System Height with Cabinet: Approximately 160cm

Glass Thickness: 15mm

Glass Type: Ultra-clear glass

Bracing: Euro-braced

Aquarium Support: Floating-look design with aluminium support

Cabinet Construction: Marine-specification laminated plywood

Cabinet Finishes: Black or White

Adjustable Cabinet Feet: Yes

Return Outlets: 2 × 25mm

Return Pump Configuration: Single or Dual

Overflow Valve: ReefGate high-precision valve

Filtration: REEF-SPEC sump

ReefMat Ready: Yes

Refugium Ready: Yes

Adjustable Skimmer Chamber: Yes

Skimmer Chamber Dimensions: 23 × 53cm

Return Pump Chamber Dimensions: 21 × 32cm

Adjustable Sump Water Height: 17–23cm

Automatic Top-Up: Included ATO module

Monitoring: ReefControl Lite with integrated temperature monitoring

Slide-Out Control Panel: Not included

Manufacturer Warranty: 3 years, extendable to 5 years with qualifying registration within 90 days of purchase, subject to Red Sea's warranty terms.

What's Included

The aquarium and cabinet package includes:

• Red Sea REEFER Peninsula 350 G3+ glass aquarium

• Matching marine-specification aquarium cabinet

• REEF-SPEC filtration sump

• Internal plumbing and return outlet components

• ReefGate precision overflow valve

• Mechanical filtration bags and media cups

• ReefMat-ready filtration compartment

• ReefControl Lite controller

• Automatic top-up module with integrated temperature monitoring

Please Note: This listing is for the aquarium and cabinet package, not the fully equipped REEFER MAX system. Lighting, return pump, protein skimmer, wavemakers, ReefMat unit, rock, sand, salt and livestock are not included unless specifically stated in the selected package.

Installation Advice

The Red Sea REEFER G3+ 350 Peninsula should be installed on a suitable, level floor capable of safely supporting the weight of the complete aquarium system.

Due to the size and weight of the glass aquarium, installation should be carried out with appropriate assistance.

Ensure sufficient access around the cabinet for filtration maintenance, plumbing, ventilation and electrical equipment.

Follow Red Sea's official assembly instructions carefully, including cabinet levelling, plumbing installation and water testing before introducing livestock.

The aquarium should never be moved while filled with water.

Maintenance Advice

Regular aquarium maintenance is essential to ensure the long-term performance of a marine reef system.

Inspect and clean filtration equipment as required, maintain stable salinity and temperature, and check the automatic top-up system regularly.

Monitor calcium, magnesium, alkalinity and nutrient levels according to the requirements of the coral and marine livestock being maintained.

Keep the mechanical filtration chambers, overflow system and sump clean, and inspect pumps and plumbing periodically.

The accessible sump design helps simplify routine filtration maintenance and equipment servicing.

Why Choose the Red Sea REEFER G3+ 350 Peninsula?

The Red Sea REEFER G3+ 350 Peninsula combines premium aquarium construction with an impressive three-sided viewing design in a relatively compact footprint.

Its spacious 352-litre system provides excellent opportunities for creating natural reef aquascapes, attractive coral structures and vibrant marine fish displays.

The reinforced glass construction, marine-specification cabinet, integrated ReefControl Lite monitoring and ReefMat-ready filtration sump make it an excellent foundation for a modern reef aquarium project.

For aquarists looking for a premium peninsula aquarium with contemporary styling, advanced filtration and flexible equipment options, the REEFER G3+ 350 is an excellent choice.

Recommended For

The Red Sea REEFER G3+ 350 Peninsula Aquarium and Cabinet is recommended for marine aquarists and reef enthusiasts looking for a high-quality, medium-sized reef aquarium system.

It is particularly suited to mixed coral aquariums, SPS and LPS reef displays, room-divider installations and premium home marine aquariums requiring attractive aquascaping space and flexible filtration options.