Aqua One ReefSys 434 Marine Tank with Sump, Plumbing & Cabinet

Aqua One ReefSys 434 Marine Aquarium

The Aqua One ReefSys 434 Marine Aquarium is a premium, contemporary reef system designed for serious marine aquarists who demand both performance and sophistication. With ultra-clear, low-iron glass and a deep front-to-back layout, the ReefSys range offers incredible clarity and aquascaping possibilities for showcasing your coral and marine life in stunning detail.

Each ReefSys aquarium features a precision-engineered sump filtration system, adjustable baffles, and a twin overflow pipework configuration for superior water management and near-silent operation. The UK-manufactured cabinet complements the tank with minimalist styling, soft-close doors, and your choice of six luxurious Egger finishes — blending flawlessly into any modern interior.

 

Key Benefits

• Ultra-clear low-iron glass for exceptional viewing clarity

• Deep design for creative reef aquascaping

• Customisable sump with adjustable water height for optimal equipment setup

• Twin overflow with precision valve for silent water flow

• Premium UK-built cabinet in six stylish finishes

• Complete setup with sump, plumbing, and filtration components included

 

Core Features

• Ultra-Clear Glass Construction: 15mm low-iron glass delivers a crystal-clear view of your marine environment.

• Advanced Filtration System: Includes hybrid glass and plexiglass sump with adjustable baffles for a tailored filtration setup.

• Quiet and Efficient Flow: Twin overflow design (main downpipe + emergency overflow) and precision gate valve ensure smooth, quiet operation.

• Customisable Cabinet: Soft-touch, push-open doors in Boston Concrete, Grey Nebraska Oak, Natural Nebraska Oak, Pasadena Pine, Soft Matt White, or Black Ash.

• High-End Build Quality: Handmade in the UK to exacting standards, using lifelike textured or soft matte Egger finishes.

• Complete System: Includes sump, pipework, filter socks, and top-up chamber ready for auto top-up system installation.

 

Technical Specifications

• Model: ReefSys 434

• Aquarium Volume: 434 Litres

• Aquarium Dimensions: 150W x 55D x 53H cm

• Glass Thickness: 15mm (low-iron ultra-clear glass)

• Cabinet Model: ReefSys 428 Cabinet

• Cabinet Dimensions: 150W x 55D x 80H cm

• Cabinet Colour Options: Boston Concrete / Grey Nebraska Oak / Natural Nebraska Oak / Pasadena Pine / Soft Matt White / Black Ash

• Filtration: Adjustable sump with filter sock and precision gate valve

• Included Components: Aquarium, cabinet, sump, plumbing kit, filter sock

 

Who is this product for?

Ideal for experienced marine aquarists and reef enthusiasts, the Aqua One ReefSys 434 is perfect for those who want a high-end, low-maintenance, and fully customisable marine system. Its advanced filtration and design flexibility make it suitable for reef keepers, coral growers, and hobbyists building a showpiece reef tank.

 

Additional Information

The ReefSys range is a beautiful, sleek marine fish tank. The most outstanding feature is the ultra clear, low iron glass that is immediately evident. The cabinet hides a sump that is a hybrid of glass and movable plexiglass partitions. which allow you to customise the layout to accommodate your protein skimmer, pump etc.

The twin height adjustable baffles enable the exact adjustment of the water height to suit the equipment used. A separate top up chamber towards the read of the sump also offers room to install an auto top up system.

The ReefSys runs a twin overflow pipework configuration that enables large volume flow. The important emergency overflow standpipe is incorporated within the weir. Balancing the water level is made easy through the highly precise gate valve, which ensures near silent operation.

The UK manufactured cabinet impresses with clean, minimalist lines, soft touch door mechanism and six different hand selected Egger finishes. 

Cabinet colour options: Boston Concrete, Grey Nebraska Oak, Natural Nebraska Oak, Pasadena Pine, Silk White, Black Ash

Included in the set: ReefSys glass marine fish tank, cabinet, sump, pipework, filter sock

Key Features:

• Extraordinarily clear low iron glass
• Extra depth front to back for amazing aquascaping possibilities
• Large, customizable sump with adjustable baffles
• Central weir with twin overflow (standard downpipe plus emergency overflow)
• Includes precision ball valve adjustment and filter socks to polish the water
• Superb cabinet collection manufactured in the UK to the highest standards
• Six hand selected Egger finishes featuring soft silk matt and lifelike textured wood grains
• Smooth push opening and soft closing door mechanism

Specifications: