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Established 1989
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Fluval Siena 270 Concrete

Code: 18456
  • £999.99
  • ( )
  • RRP £1,248.99
Item in Stock   |   Usually dispatched within 24 hours
  • Aquarium, Technology & Cabinet
  • User-friendly & low maintenance
  • Attractive, tidy appearance
  • Immediately ready for use

"Siena" aquarium combinations meet the boldest demands: modern technology, shapely design, high-quality workmanship and generous storage space that perfectly conceals bulky technology! The aquarium system consists of 3 elements: tank, aquarium technology and base cabinet. Combined together, each underwater kingdom always looks tidy and will soon become the relaxing focal point of your living space - a decorative highlight that will give you lots of pleasure!

Reliable technology for the well-being of flora and fauna - a high-performance filter; 2 powerful LED light bars; patented "Easy Connect" filter connections and an M series heater offer an all-around carefree package for a quick start! Technical details at a glance:

  • 2 LED light bars - 48 watts each, 4,400 lumens, colour temperature from 6,500 to 7,500 Kelvin; full power spectrum, can also be controlled remotely via the FluvalSmart app.
  • 1 Series 07 External Filter - powerful, energy-efficient, robust, quiet and easy to use are the hallmarks of this seventh-generation high-performance filter.
  • Easy Connect Filter System - runs through the bottom of the tank into the filter unit in the base cabinet and back - easy to install, easy to use and low maintenance
  • Ultra-slim heater series M - the heater fits this tank perfectly and provides a pleasantly warm ambience without any visual disturbance.

All-round panorama for enjoyable observation - nothing disturbs the view of your plants and animal friends, you admire their natural beauty from all sides and perhaps discover exciting behaviour! Thanks to the great interplay of the individual set elements, you can observe life in the 272-litre tank undisturbed. The equipment also promises comfort:

  • 2-part Alubond cover allows quick access for feeding and plant care
  • The removable ventilation grille dissipates heat and prevents moisture build-up
  • Concealed cable routing conceals technical nuisances and continues the purist design-line
  • High-quality 3M™ trims along the tank create elegant transitions to the cover and base cabinet - the aquarium seems to float above the piece of furniture
  • 10 mm thick glass panels incl. black silicone application and reinforcing strips above minimise bending to 1 mm

Dimensions of the tank: 90 x 55 x 55 cm / 272 litres volume

Orderly conditions behind the scenes - the interior of the cabinet scores with clear order: one side of the cabinet has a shelf that is held securely on extremely robust metal supports and can withstand even heavy loads, such as books or CO2 containers. On the opposite side, a wire basket hangs on the inside door of the cabinet and keeps food and filter media within easy reach. To ensure that the heavy equipment on this side remains stable, a studded floor mat provides reliable slip resistance. An integrated socket strip makes it easier to control cable clutter - it stays behind closed doors. Soft-close hinges enable noiseless opening and closing; the height of the 6 cabinet feet can be adjusted effortlessly from inside the cabinet. An additional shelf and an adhesive metal hook can be attached according to individual needs.

Dimensions of the base unit: 90 x 55 x 73 cm. The piece of furniture was designed to fit the aquarium set (including technology) "Siena 270" by Fluval.

The overall dimensions (tank and base cabinet) are 90 x 55 x 128 cm


  • Aquarium
  • Cabinet 
  • M Series Heater
  • 407 Filter
Contact us with any questions you have about this product

Payment Methods

We accept all major Credit and Debit cards, and these are processed via a third party payment gateway called Opayo. 

We also accept payments via PayPal and PayPal credit. 

Also, you can pay using Android and Apple Pay if you are using a compatible device. 

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


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When creating an account on our website, we ask that you use a unique password, this will help keep all your online accounts safe. If you are visiting our website via a smartphone we suggest you use the strong password and store it securely on your phone. 

Our website is run on Visual Soft, which means all your data is stored securely on their servers. 

Next Day Shipping Upgrade - Cut off Midday (12 pm)

Please Note: We only deliver ponds and pond plants on our own delivery vehicles!

The blue highlighted area on the map below is where we deliver on our own vehicle! Unfortunately, if you are not in one of these postcode zones we are unable to deliver certain items such as plants, small glass items and selective other products.



We offer a few different delivery options depending on the size and value of your order.

Orders over £50 qualify for free mainland UK (excludes Northern Ireland) delivery which will arrive within 3-5 working days of the order being processed.


Residents of Northern Ireland, please provide your EORI or XI Number.

If you do not have one, please follow the information at


Orders Below £50 in Mainland UK will be charged a standard delivery fee of £5.99.

Additional Shipping Charges

For any orders that do not include Aquariums, the below is charged:

Next Working Day Parcel Delivery to Mainland UK - £7.99 OR £2.99 if the order is over £50

Standard Parcel Delivery to Northern Ireland £8.99

Standard Parcel Delivery to Scottish Highlands & Islands £9.99

Standard Parcel Delivery to Jersey & Guernsey £12.99


For all Aquarium deliveries (Excluding biOrbs & Smaller Aquariums), the below is charged:

Next Working Day Pallet Delivery - £20

2 Hour Booking Slot Pallet Delivery - £20

Pallet Delivery to Northern Ireland - £38

Pallet Delivery to Isle of Wight (PO36 and Above) and Scottish Highlands (AB, PH, IV1-36, IV63, KW1-14, KY, PA21-41) - £38

Pallet Delivery to Southern Ireland - £48

Pallet Delivery to Offshore postcodes (KA27-28, PA20, PA42-49, PA60-90, ZE, JE, GY. IM) - £70

Pallet Delivery to the Scottish Isles (IV40-56, KW15-17) - £90

Pallet Delivery to Outer Hebrides (HS) - £120