Canister Filter vs. Hang-on-Back Filter
Compare canister and hang-on-back aquarium filters by flow, media space, maintenance, and tank size.
Who this guide is for
This comparison is for aquarium keepers deciding between a simple hang-on-back filter and a larger canister filter.
What to compare
Hang-on-back filters are easy to install and maintain. Canister filters usually offer more media volume and can fit larger tanks, but they take more setup and cleaning care.
Buying guidance
Use the filter flow calculator first. Then compare real GPH, media space, noise, maintenance access, and livestock needs before choosing a filter style.
Use the calculator first
Start with the related calculator, then use this guide to interpret the result. Confirm actual water volume, product labels, water tests, livestock sensitivity, and tank conditions before changing equipment or dosing.