The NYOS ® OPUS ® G2 series are ready-to-use reef aquariums engineered for quality, functionality and aesthetics. Thoughtful details place the tank itself in the background so nothing distracts from the main attraction: the reef experience.
Key Features
- Hidden overflow with external downcomer flush to the rear pane for a clean look and extra aquascaping space
- Three sides in ultra-clear glass with transparent silicone for vivid, lifelike colors and clear edges
- Deep blue rear panel creating a realistic depth effect under lighting
- Pool-basin design without cross braces for an unobstructed view
- Large, functional technique sump with generous filter chamber and 5‑chamber principle
- PVC fixed piping for safety, durability, and space-saving installation
- Adjustable, quiet drain plus emergency overflow
- Separate XL refill tank designed to cover about a week of evaporation
- Made in the EU with improved sustainability aspects
Cabinet
Moisture-resistant carrier plates (EN 312) and a durable melamine resin coating deliver robust, scratch- and impact-resistant surfaces. Cabinets are lined with waterproof foam, feature an increased working height, and a push-to-open system for comfortable access. Two design lines are available to match your style—minimal, space-saving elegance or a more cubic look with added storage and premium hardware.
Technique Sump
- Clear PVC piping for quick, reliable setup
- Generous main chamber with a constant water level of approx. 21 cm for skimmers, media reactors or algae reactors
- Included nylon filter sock for longer service life
- 5‑chamber layout: settling, mechanical filtration, main filter chamber, optional bubble trap, return chamber (ideal for ATO sensor)
Aquascaping and Viewing Experience
Extra depth supports spectacular reef structures, while ultra-clear glass reduces green tint so fish and corals appear more contrasting and vibrant. The deep blue rear pane enhances the illusion of a natural underwater world.
Sustainability
Wood components come from verified legal sources per ISO 38200 and are produced in FSC ® certified facilities. Panels include recycled material and co-products to help lower the carbon footprint.
From hidden overflow and silent operation to premium cabinetry and a thoughtfully engineered sump, this complete reef system delivers professional performance, easy maintenance, and timeless design—perfect for a stunning saltwater display at home or in the office.
ProLine
Aquarium:
Aquarium dimensions (L x W x H) 90x55x53 cm
Volume aquarium (gross) 262L
Ultra clear glass Windscreen and side windows left and right
glass thickness 10mm
Hidden overflow (no downcomer in the aquarium) Yes
Cabinet (Pro Line):
Cabinet dimensions: 98.5cm x 65.5cm x 90cm (38.8 x 25.8 x 35.4 in)
Colors available: White or basalt grey
Total height of aquarium with cabinet: 140 cm (4 ft 7 in)
Height-adjustable feet: Yes
Sand edge and front silicone seal concealed: Yes
Hinges: Premium 125° with soft-close
Moisture-resistant wood boards in accordance with EN 312: Yes
Sump:
Sump dimensions: (L x W x H) 50 x 50 x 35 cm (20 x 20 x 13.8 in)
Sump water level: approx. 21cm (8 in)
Sump volume (gross) at a water level of 21cm (8 in): 52 liters (14 gal)
Refill tank dimensions: (L x W x H) and volume (net) 12 x 42 x 50 cm, 22 liters (4.7 x 16.5 x 20 in, 6 gal)
Footprint (skimmer chamber): (L x W) 30 x 50 cm (11.8 x 20 in)
Footprint (return chamber): (L x W) 20 x 22 cm (7.9 x 8.7 in)
Emergency drain Yes
Recommended flow return pump 2.000 l/h (525 gph)
Adjustable valve on main drain Yes
SlimLine
Aquarium:
Aquarium dimensions (L x W x H) 90x55x53 cm
Volume aquarium (gross) 262L
Ultra clear glass Windscreen and side windows left and right
glass thickness 10mm
Hidden overflow (no downcomer in the aquarium) Yes
Cabinet (Slim Line):
Cabinet Dimensions: 90cm x 55cm x 90 cm (35.4 x 21.7 x 35.4 in)
Colors available: White or basalt grey
Total height of aquarium with cabinet: 143 cm (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:
Sump dimensions: (L x W x H) 50 x 50 x 35 cm (20 x 20 x 13.8 in)
Sump water level: approx. 21cm (8 in)
Sump volume (gross) at a water level of 21cm (8 in): 52 liters (14 gal)
Refill tank dimensions: (L x W x H) and volume (net) 12 x 42 x 50 cm, 22 liters (4.7 x 16.5 x 20 in, 6 gal)
Footprint (skimmer chamber): (L x W) 30 x 50 cm (11.8 x 20 in)
Footprint (return chamber): (L x W) 20 x 22 cm (7.9 x 8.7 in)
Emergency drain Yes
Recommended flow return pump 2.000 l/h (525 gph)
Adjustable valve on main drain Yes
