The Aqua One Aquastyle 620 Sponge 3S is crafted to maintain optimal aquarium water quality by efficiently trapping fish waste while purifying the environment. This product combines a carefully calibrated polymer wool top layer with a carbon tray to achieve superior filtration performance for 4 to 6 weeks before replacement is recommended. The polymer wool is dense enough to capture aquarium debris without restricting water flow, ensuring smooth water circulation throughout the tank.

The carbon tray securely holds activated carbon granules, preventing mess and enhancing water purification. It ensures balanced water distribution across the filter, maximizing the filtration area. This effective process allows for homogeneous water exit through the cartridge, thereby optimizing the function of the underlying black sponge and bio-noodles layers.

While the primary function of the Aqua One 3C series is not to foster beneficial bacteria, it plays a crucial role in safeguarding the foam and bio-noodle layers from harmful waste accumulation. Regular inspection once a week is advised to determine when it may be time to replace the cartridge. If pooling is observed on the surface, a change is necessary.

Although the recommended replacement interval for the 3c cartridge is every six weeks, the foam and Bio-Noodle layers are longer-lasting components of the system. Regular monthly renewal of some bio-noodles is suggested to maintain their performance, while the sponge layer should be rinsed occasionally in aquarium water to sustain its effectiveness. Annual replacement of the sponge layer is also recommended.

• Polymer wool layer designed to efficiently capture waste without impeding flow
• Carbon tray prevents mess and promotes balanced water distribution
• Supports generation of beneficial bacteria in bio-noodles and sponge
• Recommended cartridge replacement every 4 to 6 weeks
• Easy weekly visual inspection to monitor performance

This product is an ideal choice for aquarium enthusiasts seeking a straightforward, effective solution for maintaining clean and healthy aquatic environments. Its well-thought-out design facilitates easy maintenance and helps optimise the longevity and performance of aquariums.

• Brand: Aqua One
• Compatible With: Aquastyle 620
• Filter Type: Carbon and Polymer Wool
• Function: Water purification and waste trapping
• Replacement Interval: Every 4 to 6 weeks

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.