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Aquarium External Filters

External filters typically provide multiple stages of filtration by offering several layers of various media throughout the filter unit. These filters operate outside of the aquarium and can be conveniently stored in a cabinet under the aquarium, making them easily accessible for maintenance.

  • OASE BioMaster external canister filters

    BioMaster 2

    Experience the next generation of our best-selling BioMaster filter—now reimagined as the BioMaster 2! With updated features, it’s our most efficient and user-friendly filter yet.

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  • OASE FiltoSmart 60 hanging on the side of an aquarium

    FiltoSmart

    The FiltoSmart line of premium compact external filters uses multi-staged mechanical, biological, and chemical filtration which provides an extremely high surface area for beneficial bacteria to colonize.

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Our external canister filters are characterized by high filter performance and long service life. The EasyClean features and advanced designs are perfect for maintaining a clean and healthy ecosystem for your fish and plants.

Our Thermo line has the added benefit of an integrated heater. By integrating the heater into the filter, the amount of additional equipment seen in the aquarium is reduced.

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