Red Sea REEFER S-850 G3 Deluxe

The REEFER S-850 G3 Deluxe is a top-tier, large-capacity reef-ready aquarium system engineered for dedicated reef keepers who want expansive viewing, powerful circulation, and advanced lighting in a single, professional-grade platform. Featuring the G3 fully redesigned flow system and hydrodynamically optimised piping, this system increases water movement by up to 50%, supporting coral health, system stability, and efficient long-term performance.

As one of the largest models in the G3 lineup, the S-850 incorporates euro-braced construction for exceptional structural strength and durability, making it ideal for substantial marine displays. The Deluxe version includes ReefLED G2 lighting with dedicated mounting systems, delivering a reef-safe spectrum specifically designed for coral growth and colouration. An extended warranty of up to 5 years provides added confidence in this premium aquarium system.

The REEFER S-850 G3 Deluxe comes with 2 ReefLED G2 lights, delivering a reef-safe spectrum tunable from 10,000K reef-white to 23,000K REEF-SPEC blue, enhanced with violet, UV, and a boosted 470nm PUR channel. A dedicated 3W Moonlight channel provides gentle nighttime illumination for reef-safe viewing.

Easily control your lights through the ReefBeat App.

Display tank length - 180 cm
Display tank height - 65 cm
Display tank width - 68 cm
Total system height - 153 cm
Total system water vol. - 850 L
Display tank water vol. - 680 L
In-cabinet sump water vol. - 170 L
Ultra-clear front glass - 19 mm
Ultra-clear side glass - 19mm
Bottom glass - 19mm

Return Pump

Recommended Flow - 9000LPH (Pump Not Included)

Filtration

Protein Skimmer - Recommended RSK900 (Not Included)
Mechanical Filtration (Bubble Trap) - Yes
Micron Filter Bags 225 Thin Mesh - 2
Filter Media Cup - 2
Carbon Filtration Media - Not Included

Sump

ReefMat Ready Removable Ready Chamber - ReefMat 1200 Ready
Adjustable Height Skimmer Chamber - Yes
Refugium-Ready - Yes
Split Sump - Yes

Cabinet

Aluminium Cabinet Frame - Yes
Marine-Spec Cabinet - Yes
Chiller Ready - Yes
Heavy Duty Levelable Plywood Cabinet - Yes

Lighting

3 x ReefLED G2 170