Nyos® OPUS® G2 | The Definitive Guide to Modern Reef Syste

The Nyos® OPUS® G2 is a professional-grade, ready-to-use reef aquarium engineered for high-end minimalism and ease of use. It is designed for reef keepers who demand a clean aesthetic where the hardware stays hidden, allowing the vibrant colors of fish and corals to be the primary focus.

What makes the Nyos® OPUS® G2 different?

Unlike standard aquariums, the OPUS® G2 utilizes a hidden external overflow and ultra-clear low-iron glass to provide a seamless "pool tank" view. It eliminates interior obstructions, giving you more room for creative aquascaping and easier maintenance.

Core Features at a Glance

  • Ultra-Clear View: Low-iron glass ensures natural color reproduction without the green tint of standard glass.

  • External Overflow: Embedded in the back pane to maximize interior space and simplify cleaning.

  • Deep-Dimension Design: Increased front-to-back depth creates a massive canvas for multi-dimensional rockwork.

  • Silent Filtration: A 5-stage PVC-piped sump system designed for whisper-quiet operation and high-capacity nutrient export.

Technical Specifications

Feature Specification
Glass Type Ultra-Clear Low-Iron Glass
Overflow Style Hidden External Box
Cabinet Finish Moisture-Resistant Melamine Resin
Manufacturing Sustainably Made in the EU
Sump Design 5-Stage with Integrated Bubble Trap
Colors Timeless White & Modern Basalt Gray

Choosing Your Cabinet: Pro-Line® vs. Slim-Line®

Which Nyos® OPUS® G2 cabinet is right for you?

  • Pro-Line® Cabinet: Ideal for users who need maximum storage. It features a "Cubic Design" with a larger footprint, solid 38mm doors, and a hidden sand edge that conceals the bottom silicone line of the tank.

  • Slim-Line® Cabinet: Designed for the ultimate minimalist. This space-saving profile offers clean, sharp lines at an accessible entry-level price point without sacrificing quality.

The Engineered G2 Sump System

The OPUS® G2 filtration system is a complete, pre-plumbed solution designed for quiet, effective water management.

  1. Sedimentation Chamber: Pre-settles large debris.

  2. Filter Sock: High-efficiency mechanical filtration.

  3. Constant-Level Chamber: Optimized for skimmers and reactors.

  4. Bubble Trap: Prevents micro-bubbles from entering the display.

  5. Return Chamber: Houses the return pump with high-quality PVC fittings.

Sustainability & Craftsmanship

Every OPUS® G2 is made in the EU using FSC® certified wood and recycled materials. By choosing an OPUS® system, you are supporting a product with a lower carbon footprint and a commitment to environmental responsibility.

Frequently Asked Questions

Does the Nyos® OPUS® G2 include plumbing?

Yes, the system comes with high-quality, pre-fabricated PVC piping and an adjustable main drain for silent operation.

What is the benefit of an external overflow?

An external overflow moves the bulky "overflow box" outside of the aquarium. This creates more room for corals and ensures you never have to scrub algae off a box in the middle of your tank.

Is the glass scratch-resistant?

While all glass can be scratched with sharp tools, the high-purity glass used in the G2 series is tempered for durability and clarity.