Fluval Flex 123 Litre LED Bluetooth Freshwater Aquarium & Cabinet Set

From £369.99

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Fluval Flex 123 Litre LED Bluetooth Freshwater Aquarium & Cabinet Set
Out of Stock Online
Also available in store

Delivery of this aquarium to your chosen UK mainland address can take up to 2 weeks, during this time you will receive a phone call to arrange a suitable delivery window. Weekend delivery is not available. The courier will drop the pallet on the curb closest to your home, it is advised to have more than one person to accept delivery. Disposal of any packaging, including pallets, is not included. Please check all products for damage before signing. This item is deliverable to UK mainland only, excluding Highlands and Islands.

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The Fluval Flex 123 Litre aquarium makes an exciting addition to Fluval’s bold curved aquarium series. It comes fully equipped with Bluetooth operated Aquasky LED that offers total control over brilliant custom colours, multiple dynamic effects and a programmable 24-hr light timer. In addition, this all-new Flex includes a built-in filtration system with 2 independent multi-stage chambers for maximum cleaning efficiency.

Key Features:

Brilliant Controllable Illumination
The Fluval Flex comes with a super bright 7500K white LEDs with tri-coloured RGB offer an adjustable light spectrum capable of replicating various wild aquatic environments. The FluvalSmart app gives a 24-hour customisable lighting schedule provides endless colour blends and up to 7500K to support plant growth and enhance fish colouration, all from your phone. The app also allows multiple weather effects from the world’s great natural fish habitats from stormy lighting to dense cloud cover

Multi-Stage Filtration
The Flex features a separate rear compartment camouflaged by a honeycomb print to house its multi-stage filtration for optimal water clarity. The 3 stage system contains oversized mechanical (foam block), chemical (carbon) and biological (Biomax) filtration. Filter media (2 of each) is all included. 

Convenient Features
The Flex comes compact with several great features including its easy feed large cut out opening for simple feeding. Its twin multi-directional dual output nozzles mean the tank water flow can be adjusted to depending on your tank setup. The rear filtration compartment also provides ample space for a heater.

Technical Specification:

Flex 123 Freshwater Flex 123 Marine
Aquarium Volume 123 L 123 L
Aquarium Dimensions (L x W x H) 82 x 39 x 40 cm 82 x 39 x 40 cm
Overall Dimenions (L x W x H) 82 x 39 x 114.5 cm 82 x 39 x 114.5 cm
Filter Flow Rate L/H 770 L/H 810 L/H
Heater N/A N/A
Lighting W 21 W 42 W
Lighting Lumens
1450 lm 1800 lm
Lighting Colour Temp
3000 - 7500 K 3000 - 25000 K


*Please note that the aquarium cabinet is a colour effect veneer finish and not the natural product.

Product Highlights
  • Includes built in Filter and LED lighting
  • Volume: 123 litres
  • Intended for Freshwater use, a Marine version is also available
  • Super bright 6500K white LEDs with an adjustable light spectrum completely controlled by the Fluval Smart App
  • Bold curved front design
  • Powerful 3-stage filtration for superior water quality
  • Multi-directional dual outputs for customized water flow
  • Available in Black & White
  • This product comes with a 2-year warranty, excludes cracked glass and the cabinet.

Product Manual For This item


Delivery costs for your order will be calculated during the checkout process using your designated delivery address and chosen delivery method. You will only pay one delivery charge for your order and this will be calculated on your entire basket after you have entered your delivery address. If for any reason your products are not deliverable to your chosen delivery address, the checkout will inform you of this before your order is submitted.

As this product is dispatched directly from a manufacturer, we cannot confirm the courier which will be used until after your order has been accepted. Delivery information of this item will be given by our suppliers within 5 working days of your order being accepted. The delivery will be booked in at a time which is suitable for you. Please be assured that this item will not turn up without prior warning. Delivery of this product will only be Monday - Friday only.

A signature is required for all direct from manufacturer orders, at which point the responsibility for all consignments passes to you. Please make sure that you check all products for damage before you sign for them. If you have specified another recipient (who is not you) for delivery purposes, then you accept that evidence of a signature by the said recipient (or another appointed person) at your delivery address is evidence of delivery and fulfilment by us and this accepts the transfer of responsibility to yourself. 

We only ship this item to the UK mainland. We do not ship this product internationally, or to the highlands and islands.

To see a full list of our delivery charges and to read our terms and conditions, click here.

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