Red Sea Reefer XL525

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  • Regular price $3,750.00

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Delivery options for this aquarium are only available to Western Australia.


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.

Features include:

  • Rimless, ultra-clear, beveled edge glass aquarium
  • Elegant, marine-spec, laminated, plywood cabinet with adjustable feet
  • Assembly-ready piping – no gluing required
  • Professional refugium ready sump with adjustable height skimmer chamber *
  • Silent, regulated down-flow system with emergency overflow
  • Integrated automatic top-up system with reservoir
  • RO liter reservoir that can be slid aside when necessary for pump maintenance. (not for 3XL900)
  • Micron filter bags and filter media cups * 

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 in the larger models also includes a dedicated, vented space for chillers) is smartly finished with weatherproof, epoxy-painted doors.


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 micron filters and/or filter cups with your choice of media before flowing into the optional refugium and onto the skimmer chamber with an adjustable height outlet, 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 constant, stable water flow throughout the complete system.

Supplied as a complete self-assembly kit, all pipework is ready without the need for any gluing.



REEFER™ Series Technical Data 


XL 525

Main Features

Ultra clear front and side glass

Ultra clear front glass thickness (mm)

15 (5/8”)

Built in surface skimmer

Integrated automatic top up system

System Volumes

Display tank water volume (L)

409 (108 gal)

In cabinet sump water volume (L)

116 (31 gal)

Total system water volume (L)

525 (139 gal)

RO reservoir volume (L)

20.8 (5.5 gal)

System Dimensions

Display tank length (cm)

150 (59″)

Display tank height (cm)

55 (22″)

Display tank width (cm)

57.5 (22.6″)

Total system height with cabinet (cm)

142 (56″)

Sump Dimensions

Water height (cm)

20-27 (7.9”-10.6”)

Skimmer chamber without Refugium wall (cm)

56 x 48 (22” x 19.3”)

Skimmer chamber with
Refugium wall (cm)

 56 x 25 (22″ x 9.8″)

Pump chamber (cm)

26 x 24 (10.2” x 9.4”)

Return Pump

3/4” threaded hose barb – Pipe Int. Dia

25mm (1”)

Recommended flow (lph)
(pump not included)

4000 (1060 gph)

Deluxe Series Features


3 Units RL90 (270W) or
2 Units RL160S (320W)

Special Features

Adjustable Height Skimmer Chamber

Refugium Ready

225 micron Thin-mesh Filter Bag


Filter Media Cup


Quick Release cabinet door hinges

Heavy Duty levelable Plywood Cabinet