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Aquarium Sets

Nyos Opus 300 Aquarium

Nyos Opus 300 Aquarium
Nyos Opus 300 Aquarium
Nyos Opus 300 Aquarium
Nyos Opus 300 Aquarium
Nyos Opus 300 Aquarium
Nyos Opus 300 Aquarium
Nyos Opus 300 Aquarium
Nyos Opus 300 Aquarium
Nyos Opus 300 Aquarium

Ready-to-use reef aquarium

  • minimalistic design
  • ultra-clear glass for brilliant colors
  • deep blue lacquered pane for realistic depth effect
  • space-saving integrated auto top off system
  • Manufacturer:Nyos
  • Item number:V156030
  • Included:

    Aquarium with external overflow shaft and ultra-clear glass on three sides, Cabinet fully assembled, optionally in basalt grey or white, Pre glued PVC plumbing Sump including refill tank and mechanical auto top off system

1.690,00 €

including 19% VAT ,

Recommended retail price: 1.690,00 €


Clear glass edges

In order to detract as little as possible from the reef experience, only transparent silicone is used in the display aquarium.

Three sides with ultra-clear glass for brilliant colors

The front pane and both side panes are each produced from ultra-clear glass. In comparison to conventional glass, ultra-clear glass exhibits a significantly weaker green tint, so that the colors of the fish and corals appear much more richly contrasting and lively.

Hidden Overflow

The Nyos® OPUS® is equipped with an external over flow box recessed in the back pane. With no interfering overflow box inside the aquarium, additional spa ce is available for aquascaping. It is also simple and straightforward to keep the back pane clean.

Recessed aquarium

The aquarium is recessed in the cabinet. This conceals the often unsightly bottom silicone seam, as well as the sand edge of the aquarium. With this, the view of the reef is entirely unimpeded.

Deep blue lacquered back pane for realistic depth effect

The back pane of the aquarium is finished in a precisely tailored dark shade of blue. When the aquarium lighting is switched on, this creates the perfect illusion of a realistic underwater world with depth effect.


Cubic cabinet design

The cubic cabinet design delivers the OPUS®-typical, distinctive look and perfectly sets the reef as the central feature.

Seamless finish

Within the framework of pre-assembly in the factory, all external gaps and seams in the cabinet are sealed. This results in a perfectly seamless finish, as if cast from a single piece.

Full-surface all-round lacquered finish

The entire surface of the Nyos® OPUS® cabinet is finished internally and externally with multiple layers of lacquer. This provides additional internal protection against salt water and ensures the cabinet is particularly durable. The exterior exhibits the OPUS®-typical, perfectly seamless finish in a matt look.


Sophisticated design of the sump for multi-stage filtration

The sump is equipped with 6 chambers. The return water initially flows into a settling chamber, before being fed through a fine filter (filter bag). This is followed by a forced-flow, free filter chamber. It is possible to introduce filter media such as active carbon, zeolite or similar in this chamber if necessary. The large main chamber exhibits a constant water level of approx. 21cm (8.5 in) and is therefore ideal for Nyos® QUANTUM® skimmers. A bubble trap is installed in front of the return chamber, in order to reduce any micro-bubbles that may arise.

Space-saving integrated auto top off system

An integrated mechanical auto top off system ensures compensation for water lost through evaporation. The refill tank optimally utilises the free space in the area of the return chamber.


  • settling chamber
  • filter bag
  • free filter chamber
  • main Chamber
  • bubble trap
  • return chamber
  • refill tank
Dimensions (LxWxH):

Tank 90 x 55 x 53 cm
Cabinet 98 x 66 x 76 cm
Sump 55 x 38 x 38 cm

Glass Thickness:

10 mm


Aquarium: 262 l (69 gal)
Sump with 21 cm water level: 44 l (11,6 gal)

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