Canister Filters Vs. Spin-On Filters

Spin-on filters are aquarium filters that are also known as biological filters, spinning wheel filters, bio-wheel filters or power filters. Canister filters tend to always be called canister filters. They both work by pushing aquarium water through filtration material and then back into the tank.

  1. Size

    • Canister filters are far larger and heavier than a spin-on filter. Canister filters need to be stored underneath or next to the aquarium. Spin-on filters are placed directly onto the side of the tank's top.

    Cost

    • Spin-on filters are far less expensive than canister filters. However, spin-on filters require the use of brand-specific disposable filter cartridges. Canister filters have the capacity to use any filtration media the owner wants and not just a specified cartridge.

    Types

    • Canister filters are recommended for aquariums with live plants or for saltwater aquariums. Spin-on filters are good for freshwater fish tanks without live plants.