Red Sea Reefer G2+ 625 Complete System black - 625L

• 497 L of display water on a 65 cm deep footprint – meaningfully more front-to-back room for aquascaping and coral placement than the 425 or 525.
• Thicker glass for the larger volume – rimless, ultra-clear, beveled edge, 19 mm front and side, 15 mm bottom.
• 123 L REEF-SPEC sump with a bubble trap sponge, a mechanical filtration compartment (225-micron filter bags and media cups) and an adjustable-height skimmer chamber.
• ReefATO+ automatic top-off – digital temperature monitoring, an audible leak alarm and a titanium multi-input probe, run from the ReefBeat app.
• Silent downflow system with an enlarged rectangular inlet and a high-precision valve, quieter than a standard overflow pipe.
• Dual side return outlets and full internal plumbing with metric and US-sized bulkhead connectors.
• Aluminium cabinet supports under a self-assembly marine-spec laminated cabinet with adjustable feet.

• Rimless ultra-clear glass aquarium, black cabinet
• REEF-SPEC glass sump with bubble trap sponge, mechanical filtration compartment, 225-micron filter bags and media cups
• Large central overflow box with surface skimmer and removable weir comb
• Silent downflow pipe with high-precision valve
• Internal piping kit with dual side return outlets and metric/US bulkhead connectors
• ReefATO+ automatic top-off system: digital temperature monitor, leak detector, titanium water-level probe, ATO pump and top-up reservoir
• ReefBeat smart controller connectivity for the ATO system

• Lighting
• Protein skimmer – the sump has an adjustable-height chamber ready to take one
• Return pump
• ReefMat auto-advance fleece roller filter
• Heater, salt, rock, sand and livestock – as with every aquarium we sell

The Reefer G2+ 625 has a 150 × 65 cm footprint (0.975 m²) and weighs approximately 930 kg fully filled, per Red Sea's own published system weight. Spread over its footprint, that works out to roughly 954 kg per square metre directly under the cabinet – a figure calculated from Red Sea's published weight and footprint, not one Red Sea states directly. This is the heaviest system in the Reefer G2+ range: a slab-on-ground floor is the safer default, and if you're placing it upstairs or on a suspended timber floor, get a builder or structural engineer to confirm your floor is rated for it before ordering, not after delivery.

Red Sea sells this platform two ways. The Complete System – what this listing is – is the tank, cabinet, sump and plumbing, ready for you to fit your own lighting, skimmer and pump. The Reefer MAX adds Red Sea's own ReefLED lighting, a REEFER DC protein skimmer and a return pump, pre-matched to the tank, at a higher price. Neither is "better" – MAX suits a plug-and-play build on Red Sea's own equipment; the Complete System suits a build using equipment you already own or prefer from other brands.

All three sizes share the same sump design, ReefATO+ system and silent overflow – the difference is display volume, footprint and the floor loading that comes with it. The 625 is the largest of the three: the most display volume and the deepest footprint, but also the heaviest filled weight and the thickest glass, which is why floor loading matters most on this size.

Suitable for an experienced reefer with a confirmed, adequately rated floor, who wants the largest display in the Reefer G2+ range and is choosing their own lighting, skimmer and return pump. Suitable for a planned installation where delivery access and final position have already been checked. Not suitable as an impulse purchase – at 930 kg filled and a 65 cm-deep footprint, this needs a floor assessment and a clear delivery path before it arrives. Not suitable if you'd rather buy one matched package – the Reefer MAX 625 does that.

Covered by a Red Sea manufacturer's warranty against defects in materials and workmanship, in addition to your rights under Australian Consumer Law. Red Sea's own published warranty terms are inconsistent across its literature, with figures ranging from a 2-year to a 3-year standard term depending on which Red Sea document is checked, and Australia named as eligible for an extended term on its registration page. We're confirming the current Australian figure with Red Sea directly; contact us before purchase if the exact term matters to your decision. The cabinet is self-assembly. This is the heaviest and deepest system in the range – arrange enough people to move and position it, and confirm your delivery access (stairs, doorway width, corners) before ordering.

A DC return pump sized to the sump's flow and your plumbing's head height, a protein skimmer rated for a 625-scale bioload, and enough Red Sea lighting coverage for a 150 × 65 cm footprint – the same choices the Reefer MAX bundles in for you, bought separately here to suit your preferences and budget.

Does the Reefer G2+ 625 include lighting, a skimmer or a return pump?

No. This is the Complete System: tank, cabinet, sump, plumbing and the ReefATO+ auto top-off. Lighting, a protein skimmer and a return pump are all sold separately and fitted after purchase.

What's the difference between this and the Reefer MAX 625?

The Reefer MAX 625 is the same tank, cabinet, sump and plumbing with Red Sea's own ReefLED lighting, a REEFER DC skimmer and a return pump already fitted, at a higher price. This Complete System gives you the same foundation and lets you choose your own equipment.

Do I need to worry about floor loading?

Yes, more than on any other Reefer G2+ size. At roughly 930 kg filled over a 0.975 m² footprint, that's around 954 kg/m² directly beneath the cabinet – have a builder or engineer confirm your floor can carry it before ordering, especially upstairs or on a suspended timber floor.

What's the empty weight of the tank alone?

Red Sea hasn't published a separate empty weight for the 625 G2+ glass aquarium. Contact us and we'll confirm with Red Sea directly if you need this figure for a delivery or installation plan.

Can I fit any brand of return pump and lighting?

Yes – the plumbing uses standard metric and US-sized bulkhead connectors and the cabinet has an open equipment area, so it isn't locked to Red Sea's own MAX equipment. Match pump flow to your sump's throughput and head height, and check your chosen light's mounting method against the tank's rimless top edge.