Fluval Biomax Rings are high-performance ceramic filter media designed to enhance biological filtration in freshwater and marine aquariums. With their porous structure and extensive surface area, these rings provide the ideal environment for beneficial bacteria to thrive—helping to break down ammonia and nitrite and support a balanced, healthy tank.

Safe and inert, Biomax Rings do not alter water chemistry, making them suitable for all aquarium types. Their unique design maximises water flow while offering countless micro-tunnels for bacteria colonisation, significantly boosting your filter’s efficiency.

Key Features:

• Supports strong biological filtration for a healthier aquarium
• Highly porous ceramic rings with large surface area
• Promotes growth of beneficial, water-purifying bacteria
• Helps reduce ammonia and nitrite levels
• Inert and safe – does not alter water parameters
• Supplied in a colourful 1100g retail box

Ideal for use in most external and internal filters, Fluval Biomax Rings are a trusted addition to any setup where clean, stable water is a priority.

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.