- Description
- Reviews
NYOS OPUS G2 200 Pro with a White Cabinet
The NYOS OPUS G2 200 Pro-Line with a White cabinet features a 166L (44 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
(Lighting, skimmer, return pump, and heaters sold separately.)
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" |
Sump & Equipment Guide
| Model | Sump Volume | Sump Dimensions (L × W × H) | Recommended Return Pump (sold separately) | Recommended Nyos QUANTUM Skimmer (sold separately) |
|---|---|---|---|---|
| OPUS G2 200 Pro-Line | ~9 gal / 35 L | 13" × 20" × 13.8" | 525 GPH (2000L/h) | QUANTUM 120 |
| OPUS G2 250 Pro-Line | ~11 gal / 42 L | 15.8"x 20"x 13.8" | 525 GPH (2000L/h) | QUANTUM 120 |
| OPUS G2 300 Pro-Line | ~14 gal / 52 L | 20" x20" x13.8" | 525 GPH (2000L/h) | QUANTUM 160 |
| OPUS G2 440 Pro-Line | ~16.4 gal / 62 L | 23.6" x20" x 13.8" | 525 GPH (2000L/h) | QUANTUM 220 |
Recommended Additional Equipment (Sold Separately)
| Model | Lighting Recommendation | Circulation Pump Volume | Heater Recommendation (if using 2 heaters) |
|---|---|---|---|
| OPUS G2 200 PRO-Line | 1 × ATI Straton X 102 | 500–1,000 GPH total flow | 2 × 150 W heaters |
| OPUS G2 250 PRO-Line | 1 × ATI Straton X 102 | 1,000–1,500 GPH total flow | 2 × 200 W heaters |
| OPUS G2 300 PRO-Line | 2 × ATI Straton X 102 | 1,200–2,000 GPH total flow | 2 × 250 W heaters |
| OPUS G2 440 Slim-Line | 2 × ATI Straton X 102 | 3,200-3,500 GPH total flow | 2 × 300 W heaters |
(Lighting and circulation guidance assumes mixed reef setup with moderate coral density; adjust as needed for SPS or LPS dominant systems.)
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
