Designed as the perfect reefscaping
canvas, REEFER G2 tanks combine REEF-
SPEC infrastructure with the freedom to
install all your preferred hardware.
REEFER G2 systems come with a new and
improved water management system,
extra-fortified cabinets and aquariums,
ReefMat & refugium ready sumps,
extended warranty plans, and are available
in a wide variety of sizes, to fit any space.
REEFER G2 systems are also the ideal
platform for the full Red Sea Experience,
combining our LED lighting, wave pumps,
dosers, and filtration devices
into one smart, synchronized eco-system
operated via the ReefBeat App.
REEFER 525 G2 aquariums are rimless, and constructed from ultra-clear, beveled-edge glass with increased thickness of up to 19 mm or 0.75.
Extra fortified plywood cabinet
The marine-spec laminated cabinets follow the contour of the glass, and are now all fortified and made of plywood. The floating tank feature is now reinforced with front aluminum supports on all REEFER 525 G2 models and bigger.
Dual return pump outlets
All REEFER 525 G2 models and bigger now have dual side-facing return pump outlets, creating an even better water distribution.
The piping is hidden inside a large central overflow box, which has a large surface skimmer with removable comb parts, for easy cleaning.
Reefer 525 G2 Silent downflow system
The enlarged rectangular inlet to the downflow pipe reduces turbulence, making it easier to regulate.
All pipes are preformed with quick connectors at all joints (no gluing required). Bulkhead connectors suitable for both Metric and USA standard pipes can be purchased separately, allowing you to customize your sump piping.
High precision valve
All models now have a new and improved high precision valve on the downflow pipe, allowing for easy regulation of the flow and a near silent operation.
Reefer 525 G2 Professional REEF-SPEC sump
The professional sump includes a mechanical filtration media compartment (with micron filters & filter cups), which is easily removable, an optional refugium compartment, an adjustable height skimmer chamber for optimal skimmer performance, and a bubble trap to prevent air bubbles from returning to the aquarium.
ReefMat & Refugium
Plug & Play instalation for ReefMat 500/1200, together with Refugium.
ReefMat & Reservoir
Plug & Play instalation for ReefMat 500/1200, together with RO reservoir.
Reefer 525 G2 Chiller & hardware chamber
Most models come with an additional chamber that can be used for a chiller, controllers and other equipment.
Total system water volume
Aquarium volume (display)
In-cabinet sump volume
DISPLAY TANK DIMENSIONS
TOTAL SYSTEM DIMENSIONS
External height (excluding light unit)
Ultra-clear front glass
Ultra-clear side glass
Nominal total output
360W / 480W
Integrated WiFi control via ReefBeat app
Main system pump
Recommended flow: 1,850 gph (pump not included)
Recommended: RSK 900 Water flow 530 gph air flow 235 gph (not included)
Mechanical filtration (bubble trap)
Micron filter bags (225 micron thin-mesh filter bag) 2
Filter media cup 2
Reefmat ready removable media chamber
ReefMat 1200 Ready
Adjustable height skimmer chamber
RO reservoir volume
Marine spec cabinet
Heavy-duty levelable plywood cabinet
Integrated water top up system