If desired the BioStyle Filters can be optimised to suit different aquarium needs through the use of different filter media booster cartridges. These cartridges fit easily into the BioStyle Filter, in place of the biological filter foam. The quantity of cartridges the filter chamber can hold depends on the size of the BioStyle Filter.

Key Feature:

• Designed for use with the Oase BioStyle Hang On Filter range
• Customisable filter cartridge
• 120ml cartridge capacity

Add your choice or combination of filter media with the BioStyle Customisable Booster Cartridge based on your aquarium’s needs. The customisable cartridge has a 120ml capacity with dimensions of 147 x 58 x 14.5mm.

Timing for when to replace the cartridge is dependant on the type of media you place inside as well as the aquarium size, number of fish and plants, and any noticeable decline in filter performance.

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.