Fluval Flex 123


The Flex 123 L makes an exciting addition to Fluval’s bold curved aquarium series. It comes equipped with a mobile device operated Aquasky LED that offers total control over brilliant custom colours, multiple dynamic effects and a programmable 24-hour light timer. In addition, this all-new Flex includes a built-in filtration system with two independent multi- stage chambers for maximum cleaning efficiency.


- Twin output nozzles that can be adjusted to create customized water flow

- A removable cover that provides complete access to rear chamber without disturbing tank inhabitants

- Space to add a second LED (sold separately)Closable feeding flap

- An auto fish feeder opening (programmable fish feeder is available, sold separately)

- Bold curved design with honeycomb print that camouflages the water line and rear compartment


Available in black or white with optional matching cabinets. Save £75 when buying your new Flex from us, RRP £324.99, our price: £249.99!


- Fluval Smart app can be downloaded to your mobile device.

- Super bright 6500K white LEDs with tri-coloured RGB offer an adjustable light spectrum capable of replicating various wild aquatic environments.

- Multiple weather effects from the world’s great natural fish habitats from stormy lighting to dense cloud cover.

- 24 hour customisable lighting schedule.

- Wider coverage illumination casts 120 degrees of light without any dead spots.

- Volume: 123 Litres

- Dimensions: H 39cm (with cabinet: 121.5cm) , W 83cm, D 40cm






The Flex range also includes 34L and 57L models, both also available in black and white with matching cabinets.



Prices correct at time of publishing and are subject to change.



Run by Fishkeepers for Fishkeepers

Member of the Ornamental Aquatic Trade Association 

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