OPUS G2 250 Slim-Line with White Cabinet
The NYOS OPUS G2 250 Slim-Line with a White Cabinet is a stunning 204 L (54 gal) system with clean architecture, matte white finish, and discreet push-to-open functionality.
Furniture-Grade Design Premium Aquarium Performance & Quality
The Nyos OPUS G2 Slim-Line is where modern interior design meets world-class reef performance. Every system is crafted for reef keepers who want an aquarium that doesn’t just stand out — it fits in. The Slim-Line series combines the clean geometry of a minimalist display with the technical excellence of German engineering, creating a reef system that complements your home like a piece of fine furniture.
The Slim-Line cabinet sits flush with the aquarium footprint, forming a seamless silhouette with zero overhang. High-clarity low-iron glass panels, hidden overflow, and rimless construction ensure that every view is pure reef — elegant, clean, and unobtrusive.
Each OPUS G2 Slim-Line comes complete with a pre-plumbed sump, glass reservoir, and refill tank, making setup simple and maintaining your reef effortless. Built for those who want performance without clutter, it’s the perfect balance of form and function.
Key Features
• Seamless Slim-Line cabinet design that aligns perfectly with the display tank footprint
• Ultra-clear low-iron glass for vivid, distortion-free viewing
• Rimless display with transparent silicone and hidden overflow system
• Factory-preassembled plumbing kit — plug and play, no cutting or gluing required
• Multi-chamber glass sump with integrated filter sock holders
• Built-in top-off reservoir for automatic water-level control
• Moisture- and impact-resistant cabinet in matte white or basalt grey
• Push-to-open or soft-close doors (model dependent)
• German-manufactured for precision, durability, and long-term reliability
What’s Included
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Display aquarium (ultra-clear low-iron glass)
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Slim-Line cabinet (preassembled)
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Pre-fitted plumbing set with all necessary unions and fittings
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Glass sump with multi-chamber layout
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Integrated top-off reservoir
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Filter sock(s) and mounting hardware
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Return line fittings and drain system components
(Additional accessories such as skimmer, lighting, return pump, and heater sold separately.)
Specs
| Specification |
Details |
| OPUS® G2 Tank |
Nyos® OPUS® G2 250 |
| Aquarium dimensions (L x W x H) |
27.6 x 21.7 x 20.9 in |
| Display Tank gross volume |
53.9 gal |
| Ultra-clear glass |
Front pane and side panes |
| Glass thickness |
0.4 in |
| Hidden-overflow (no overflow box in the aquarium) |
Yes |
| OPUS® G2 Cabinet |
SLIM-LINE® |
| Cabinet dimensions (L x W x H) |
27.6 x 21.7 x 35.4 in |
| Colors available |
White / basalt grey |
| Total height of aquarium with cabinet |
4 ft 8 in |
| Height-adjustable feet |
No |
| Sand edge and front silicone seal concealed |
No |
| Hinges |
Standard |
| Moisture-resistant wood boards in accordance with EN 312 |
Yes |
| Sump dimension (L x W x H) |
15.8 x 20 x 13.8 in |
| Sump water level |
8 in |
| Sump volume (gross) at a water level of 8 in |
11.1 gal |
| Refill tank dimensions (L x W x H) and volume (net) |
4.3 x 16.5 x 20 in, 5.3 gal |
| Footprint skimmer chamber (L x W) |
9.5 x 20 in |
| Footprint return chamber (L x W) |
5.9 x 8.7 in |
| Emergency drain |
Yes |
| Recommended flow return pump |
525 gph |
| Adjustable valve on main drain |
Yes |
