The Fluval T100 Fully Electronic Heater provides accurate and stable temperature control for freshwater aquariums up to 100 litres (30 US gallons). Built with advanced electronic construction, it delivers consistent heating performance that supports a stable aquatic environment for fish and plants.

A continuous 24/7 monitoring system helps regulate water temperature and reduce sudden fluctuations. The integrated 360° indicator light ring clearly displays the heater’s status from any angle, illuminating red while the heater is actively warming the water and blue once the selected temperature has been reached.

The large grip dial allows simple adjustment of the temperature between 22°C and 32°C, making it easy to set the correct conditions for your aquarium. Its fully submersible design offers flexible installation and can be positioned vertically or horizontally depending on your tank layout. For additional safety, the heater automatically cuts power when removed from water to prevent overheating, while the included heater guard helps reduce the risk of damage.

This item is supplied in the original box and has been tested and confirmed working. It is an ex-demonstration unit from an unwanted item return.

Key Features:

• 100W electronic heater suitable for freshwater aquariums up to 100 litres (30 US gallons)
• Advanced electronic construction for accurate and stable heating
• 24/7 monitoring system helps regulate temperature and reduce fluctuations
• 360° indicator light ring displays heater status clearly
• Red light when heating, blue light when target temperature is reached
• Large grip dial for adjusting temperature between 22°C and 32°C
• Automatic power cut when removed from water
• Protective heater guard helps reduce risk of breakage
• Fully submersible design suitable for vertical or horizontal placement

The Fluval T100 heater offers dependable electronic temperature control for small to medium freshwater aquariums. Its clear status indicator, adjustable temperature dial, and built-in safety features make it a practical option for maintaining stable aquarium conditions.

Specifications:

• Wattage: 100W
• Recommended Aquarium Size: Up to 100 Litres (30 US gallons)
• Temperature Range: 22°C – 32°C
• Power Supply: Mains powered
• Installation: Fully submersible (vertical or horizontal placement)
• Aquarium Type: Freshwater
• Condition: Ex-demonstration unit, tested working, supplied in original box

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.