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Red Sea

REEFER XL 200 Aquarium System (42 GAL) - Red Sea


Red Sea REEFER™ Systems

Rimless reef-ready systems for advanced hobbyists. Red Sea’s REEFER™ series of Reef Aquarium Systems provide advanced hobbyists with a solid foundation for building a fully featured reef or marine aquarium.

This series combines a contemporary, rimless, ultra-clear glass aquarium with a stylish cabinet and a comprehensive water management system including a professional refugium-ready sump with integrated automatic top-up and Red Sea’s unique silent down-flow system.

Incorporating technologies originally developed for Red Sea’s all-in-one MAX® coral reef systems, the REEFER™ series is designed for ease of operation while enabling the advanced hobbyist to install an unlimited choice of lighting, filtration, circulation, and controllers to create a uniquely customized system.

The larger format REEFER™ XL now includes 2 sizes that give you the freedom to create more expansive, intricate and diverse reefscapes without the constraints of smaller aquariums. These aquariums sit on extra durable HPL coated plywood Marine Spec cabinets for greater water resistance, with fully adjustable feet for perfect leveling on any surface.

  The REEFER XL models are 57.5cm (22.6″) wide and 55cm (21.6″) high and are available in 120cm (47″) long /425 liter (88 gal) capacity or 150cm (59″) long/525 liter (108 gal).

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Features of the Red Sea REEFER™ include:

  • Rimless, ultra-clear, beveled edge glass aquarium
  • Elegant marine-spec cabinet
  • Professional sump with constant height skimmer chamber and micron filter bags
  • Silent, regulated down-flow system with emergency overflow
  • Integrated automatic top-up system with reservoir
  • Assembly-ready piping – no gluing required

REEFER™ Specification

REEFER™ aquariums are constructed from thick, beveled-edge, ultra-clear glass to support their elegant and modern rimless design. The aquarium sits on a recessed base that “floats” it above the cabinet, which seamlessly follows the contour of the glass. The marine-spec laminated cabinet that houses the sump, (and also includes a dedicated, vented space for chillers) is smartly finished with weatherproof, epoxy-painted doors.

a screen shot of an aquarium

REEFER™ Water Management System 

Removable surface-skimming combs surround the top of the centrally located overflow box that houses the downpipe, sump return pipe and the discreet multi-directional “eyeball” return outlet nozzle.

In the event of a blockage in the regulated downpipe, an additional emergency overflow pipe provides an unrestricted free flow of aquarium water directly to the sump.


On entering the sump the water passes through a 225 micron mechanical filter bag, before entering the filtration compartment that maintains a constant water height, making it suitable for all skimmers and other reactors. In order to remove any air bubbles that may have escaped from the skimmer, the water passes through a bubble-stripping cascade on its way to the return pump chamber.

To ensure a constant water level in the pump compartment, all REEFER™ sumps include an integrated automatic freshwater top-up unit, guaranteeing a constant, stable water flow throughout the complete system. Supplied as a complete self-assembly kit, all pipe work is ready without the need for any gluing.

New and improved Refugium-Ready Sumps (except REEFER™ 170)

  • An adjustable height skimmer chamber, enabling you to set the water level for optimal skimmer performance.
  • A “Refugium Ready” sump with two pre-set positions allows you to decide how much of the sump you want for your skimmer and other reactors and how much as a dedicated refugium chamber.
  • Micron filter bags and filter cups
  • Larger RO liter reservoirs that can be slid aside when necessary for pump maintenance.
  • Down-flow valve conveniently located at the front of the cabinet.

a display in a room


REEFER™ XL 200 Deluxe Technical Data

  Specification 200
Main Features Ultra clear front and side glass
Ultra clear front glass thickness (mm) 10 (3/8″)
Built in surface skimmer
Integrated automatic top up system
System Volumes Display tank water volume (L) 158 (42 gal)
In cabinet sump water volume (L) 42 (11 gal)
Total system water volume (L) 200 (53 gal)
RO reservoir volume (L) 6.7 (1.8 gal)
System Dimensions Display tank length (cm) 60 (24″)
Display tank height (cm)
53 (21″)
Display tank width (cm) 57.5 (22.6″)
Total system height with cabinet (cm) 140 (55″)
Sump Dimensions Water height (cm) 17-23 (6.7-9″)

Skimmer chamber (cm)

30 x 28
(11.8″ x 11″)

Pump chamber (cm) 30 x 14
(11.8″ x 5.5″)
Return Pump 3/4” threaded hose barb – Pipe Int. Dia 16mm (5/8″)
Recommended flow (lph)
(pump not included)
2000 (530 gph)
*Deluxe Series Features ReefLED Bundle 1 Unit
Special Features
Adjustable Height Skimmer Chamber
Refugium Ready
225 micron Thin-mesh Filter Bag 1
Filter Media Cup
Quick Release cabinet door hinges
Heavy Duty levelable Plywood Cabinet



NANO | 170 | 250 | 350

The REEFER models are 50cm (20″) wide and are available in 60cm (24″) long/170 liter (34gal) capacity, 90cm (36″) long/250 liter (65 gal) capacity or 120cm (47″) long/350 liter (91 gal). These tanks sit on HPL coated MDF Marine Spec cabinets.

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200 | 300 | 425 | 525

The REEFER XL includes four models that give you the freedom to create more expansive, intricate, and diverse reefscapes without the constraints of the smaller tanks. All four XL models are 57.5cm (22.6″) wide and 55 cm (22″) high (excluding XL 200, which is 53 cm/21″ high). They differ in length and are available in 4 sizes from 60cm (24″) long/200 liter (53 gal) capacity up to 150cm (59″) long/525 liter (140 gal). All the REEFER XL models now feature a laminated, plywood marine-spec cabinet for greater water resistance with adjustable feet for perfect leveling on any surface.





625 | 750

The REEFER XXL includes two models that enhance your freedom to create a truly spectacular reef.

Both models are 60cm (23.6″) high & 65cm (25.6″) wide and are available in 150cm (59″) long/625 liter (166 gal) capacity or 180cm (71″) long/750 liter (200 gal). The XXL750 V3 now includes a dual pump return to allow for better-distributed flow in the aquarium. All the REEFER XXL models now feature a laminated, plywood marine-spec cabinet for greater water resistance with adjustable feet for perfect leveling on any surface. 

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3XL 900

The REEFER™ 3XL 900 allows you to take reefscaping to another dimension. The 3XL 900 is 65cm (25.6″) high & wide, and 200cm (79″) long with a 900 liter (240 gal) capacity. This unit introduces an enlarged overflow box with dual side-facing return pump outlets that provides ideal water circulation in the tanks with flows of up to 10,000 lph/2600gph.

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A unique feature of the 3XL 900 is a split sump system that provides unsurpassed flexibility. The main sump is set for the main filtration functions with an optional refugium chamber and a dedicated adjustable height skimmer chamber. The sump extension (60 liters/16 gal) can be connected to the main sump and used for additional filtration, as a larger refugium, or even as a dedicated frag tank. Alternatively, it can be set up as an independent unit and used as a full-size (83 liters/22 gal) RO reservoir or saltwater reservoir for automated water changes.



Red Sea REEFER™ Peninsula Concept

If you’re looking to add the distinctive beauty of a Peninsula-style coral reef aquarium to your home or office, you don’t need a custom-built system to do so.

Red Sea’s REEFER™ Peninsula brings color and ambiance to any living or office space at a fraction of the cost of a custom installation. Available in 125cm (49.2″) long/ 500 liter (132 gal) or 160cm (63″) long/650 liter (173 gal), the REEFER™ Peninsula offers an impressive and elegant room divider solution with all of the features of our advanced REEFER™ systems. A rimless, ultra-clear glass coral reef aquarium is formed into a perfect peninsula that gives you a fascinating view from all three sides, adding complexity and intrigue to any reefscape.

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These 60cm (23.6″) high aquariums are set on stylish yet heavy-duty cabinets with epoxy painted finish on both sides. The cabinet includes a dedicated ventilated compartment for chiller and control systems and the doors may be assembled on either side of the cabinet to suit the layout of the room.

The unique design of the Peninsula with the overflow system at one end of the aquarium instead of at the center also makes it ideal for a room corner installation.


  • Most aquariums will ship directly from the distributor within 1-3 business days.
  • Once the carrier has your aquarium, they will call you to schedule a delivery date during normal business hours on a weekday.
  • If you miss your delivery, fees will apply for redelivery, storage, or return to the distributor.
  • When you get your aquarium, do a thorough inspection immediately to check for breakage or imperfections and take pictures.
  • No tax
  • Free shipping
  • 5% back as rewards
  • Exclusive discounts on add-on equipment when purchased together with an aquarium. This discount is not available from other juggernaut online retailers.
  • Outstanding customer service. Talk to a real human if you need help with your order. Get advice on how to get started or simply reach out if you just wanna chat about reef stuff!
  • Installation and maintenance services available in the Bay Area

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