NYOS OPUS G2 440 Pro with White Cabinet
The NYOS OPUS G2 440 Pro-Line with White Cabinet, features a 378 L (100 gal) aquarium, pairing modern minimalism with quiet precision for a display worthy of a gallery but perfect for your home.
Professional Reef Performance with Designer Integration
The Nyos OPUS G2 Pro-Line series represents the evolution of functional art — a professional reef system engineered for advanced aquarists who demand precision and visual harmony. Each Pro-Line model offers deeper dimensions, expanded filtration capacity, and a full-depth cabinet engineered for superior strength, acoustic isolation, and long-term durability. The result is a design that is almost as eye-catching as the living reef that will be growing within it.
Every system is built in Germany under the Nyos ethos of “High Level Reefing – Made in Germany.” The result is a reef-ready platform that performs like laboratory equipment yet looks like fine furniture — quiet, sleek, and architecturally balanced to fit seamlessly into modern interiors.
Key Features
• Full-depth Pro-Line cabinet design for increased sump capacity and quieter operation
• Ultra-clear low-iron glass for true-to-life coral and fish color reproduction
• Professional-grade preassembled plumbing with precision gate valve
• Reinforced cabinet construction with adjustable leveling feet
• Integrated glass sump with adjustable water height and refill reservoir
• Moisture-, impact-, and salt-resistant surfaces in matte white or basalt grey
• Push-to-open or soft-close door systems depending on model
• Engineered and manufactured in Germany for exacting performance standards
What’s Included
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Ultra-clear low-iron glass display tank
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Full-depth Pro-Line cabinet (preassembled)
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Pre-fitted plumbing kit (drain, return, gate valve, unions)
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Multi-chamber glass sump
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Integrated top-off reservoir
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Filter socks and holders
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Return plumbing hardware and bulkheads
Why It’s Better
• Designed for professional reef systems — deep sump, higher flow, and increased filtration volume
• Architectural form factor complements contemporary interiors
• Silent operation with precision flow control
• Turnkey plumbing system for effortless setup
• Durable, moisture-resistant cabinet built to handle years of continuous operation
• Ideal for high-end reef displays, coral grow-out systems, and aquascaping showcases
Model Size Chart
| Model |
Display Volume |
Tank Dimensions (L × W × H) |
Cabinet Dimensions (L × W × H) |
| OPUS G2 200 Pro-Line |
44 gal / 166 L |
21.7" × 21.7" × 20.9" |
25" × 25.8" × 35.4" |
| OPUS G2 250 Pro-Line |
54 gal / 204 L |
27.6" x 21.7" x 20.9" |
30.9" ×25.8" × 35.4" |
| OPUS G2 300 Pro-Line |
69 gal / 262 L |
35.4" × 21.7 × 20.9" |
35.4" × 21.7" × 35.4" |
| OPUS G2 440 Pro-Line |
100 gal / 378 L |
49.2" × 21.7" × 20.9" |
52.6" × 25.8" × 35.4" |