Red Sea Reefer 525 XL Marine Aquarium


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Combining state of the art technology with a up to date rimless style the Red Sea Reefer enables you to create substantial, gorgeous aquascaping while providing plenty of space for a diverse and thriving reef. The full-featured Red Sea Reefer 525 XL Marine Aquarium comes with everything necessary to set up your marine scape so you don’t need to worry about component choice, quality, or compatibility.


  • Ultra clear front glass thickness – 15mm
  • Display tank water volume – 240 L/54 gal
  • In cabinet sump water volume – 116 L/31 gal
  • Total system water volume – 525 L/139 gal
  • RO reservoir volume – 16.5 L/4.3 gal
  • Display tank – L 150cm x H 55cm x W 57.5cm
  • Total height – 142cm
  • Sump Dimensions:
    • Water height – 27cm
    • Skimmer chamber – 49cm x 48cm
    • Pump chamber – 49cm x 15cm
  • Return Pump:
    • 3/4″ threaded hose barb – 25mm
    • Recommended flow – 4000lph
    • (Pump not included) – (1060gph)

Revolutionary Lighting

LED technology provides you with superior performance and a user-friendly interface. It offers full spectrum, seven colour configuration with a multitude of lighting effects. As a result experience incredible performance at a mere fraction of the value of traditional lighting.

Lighting is entirely manageable via WIFI and is compatible with both android and iOS devices, Mac and PC. Further, simply rotate the LED unit to permit access for regular maintenance or for reef scaping.

Convenient Media Rack

The rear sump includes a convenient media rack. This also provides additional shelves to allow for the simple addition of other chemical filter media.

Integrated Power Advantage

One of the most gratifying conveniences of the Red Sea Reefer 525 XL Marine Aquarium is the incorporation of the one-plug concept. This features a power centre with quick access to the 7 separately switched power sockets. These are all set within the cabinet for secure and simply control of the Red Sea Reefer 525 XL Marine Aquarium sub systems.


  • Rimless, ultra-clear, bevelled 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
  • AI Hydra 26™ HD (90W) – 3 unit (additional option)

MSK 900 Skimmer 


At the very heart of the filtration system is the revolutionary protein skimmer. It fits all the criteria for SPS corals, passing the entire volume of tank water through the skimmer a minimum of 3 times an hour – with a minimum of a 3-1 water to air ratio.

Finally, the new skimmer pump and impellor run far cooler and quieter than ever before. Further, the built-in silencer on the air intake does a fantastic job at eliminating the skimmer noise. Maintain the optimal skim mate consistency which can vary according to actual water conditions.

MARINE-SPEC Laminate Cabinet

Finally the Red Sea Reefer 525 XL Marine Aquarium features stunning marine-spec laminated cabinets. These house the sump and vented spaces ideal for chillers. It is offered in smartly finished, weatherproof epoxy finished doors. They are available in white or black with black interiors in order to maintain a clean appearance over time.


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