The BioMaster can not only be conveniently concealed in the aquarium base cabinet, it is also easy to clean. The prefilter can be completely removed, simply rinse out and re-insert it - neat and clean thanks to the EasyClean prefilter module. The aquarium filter is available with or without the HeatUp adjustable heater. The BioMaster ensures discrete highly efficient filter technology outside of your aquarium!

The BioMaster or BioMaster Thermo is an external filter for aquariums between 250 and 600 litres in size with high fish stock. It offers convenience for the most rigorous requirements.

These BioMaster external filters are packed with a combination of mechanical and highly effective biological filter media meaning a much larger surface area for bacteria to colonise resulting in cleaner clearer water.

Included is all the filter media, hoses, adaptor, intake and outflow tube, as well as water diffuser. Suitable for both freshwater and marine aquariums and guaranteed for 3 years.

BioMaster Thermo 250

• Aquarium Size: 250 litres (55 Gallons)
• Max Flow Rate: 800lph (176gph)
• Max Head Height: 1.25m
• Power Usage: 14W
• Dimensions: 240 x 240 x 370mm
• Complete with 150w heater.

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.