- Sku: R40090G2A-USA
- Vendor: Red Sea
Red Sea MAX NANO G2 XXL Aquarium (53 Gal) - Black
In-store pickup only.
The Red Sea MAX NANO G2 XXL is a 53-gallon all-in-one reef system that delivers serious capability in a mid-size footprint. With dual ReefLED 50 lights, dual Sicce return pumps, and an MSK900 protein skimmer, this system is built to REEF-SPEC standards for demanding SPS coral keepers. The sleek black cabinet and rimless ultra-clear glass design make it a stunning centerpiece for any space.
Looking for more aquarium systems? Browse our Aquarium Systems and Saltwater Supplies.
- MAX NANO G2 XXL rimless ultra-clear glass aquarium (12mm glass)
- Black marine-grade plywood cabinet with adjustable leveling feet
- 2x ReefLED 50 LED lights with mounting arms (Wi-Fi / ReefBeat app controlled)
- 2x Sicce return pumps — 1,550 lph / 410 GPH each
- MSK900 protein skimmer (REEF-SPEC rated, 3:1 water-to-air ratio)
- Rear sump with removable surface skimmer, filter sock (225 micron), media chamber, and bubble trap
- Built-in gravity-fed ATO reservoir
- One-Plug Control Panel
- Complete all-in-one reef system — no separate sump, stand, or light to buy
- Dual ReefLED 50 lights with REEF-SPEC Blue (23,000K), 8,000K white, and dedicated moonlight channels
- MSK900 skimmer passes entire water volume through ~3x per hour for optimal gas exchange
- Rear sump is ReefATO+ and NanoMat upgrade-ready for automated top-off and roller filtration
- Multidirectional adjustable return nozzles for customizable flow
- Designed to Red Sea REEF-SPEC standards optimized for SPS coral keeping
| Brand | Red Sea |
| Product | MAX NANO G2 XXL Aquarium |
| Total Volume | 52.8 gallons (200 liters) |
| Display Volume | 44.3 gallons (168.5 liters) |
| Tank Dimensions | 35.4" x 21.7" x 19.7" (L x W x H) |
| Total Height w/ Cabinet | 54" (137 cm) |
| Glass | 12mm ultra-clear, rimless |
| Lights | 2x ReefLED 50 |
| Return Pumps | 2x Sicce 1,550 lph / 410 GPH each |
| Protein Skimmer | MSK900 |
| Suitable For | Saltwater / Reef |
| Cabinet Color | Black |
| Warranty | 5 years (3 + 2 upon registration) |
| SKU | R40090G2A-USA |
| Condition | New |
What's the difference between the XL and XXL?
The XXL is nearly 20 gallons larger (53 vs 33 gal), uses 12mm glass instead of 10mm, includes dual lights and dual return pumps, and features a more powerful MSK900 protein skimmer instead of the NANO XL skimmer.
Can I keep SPS corals in this tank?
Yes. The MAX NANO G2 XXL is built to Red Sea REEF-SPEC standards specifically optimized for SPS coral husbandry, with proper lighting, flow, and protein skimming capacity.
Can I upgrade to automatic top-off and roller filtration later?
Absolutely. The rear sump is designed to accept the Red Sea ReefATO+ and NanoMat accessories, available separately or as the MAX NANO G2 Pro Kit bundle.
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Red Sea MAX NANO G2 XXL Aquarium (53 Gal) - Black
