Guides
Help matching aquarium filters and pumps to tank size, bioload and noise tolerance.
Best For Tank
- Best canister for a planted 40 breeder
- Best filter for a 20 gallon community tank
- Best Filter for a Heavily Stocked Goldfish Aquarium
- Best filter if you already have an air pump running
- Best hang-on-back filter for a goldfish tank
- Best quiet filter for a bedroom aquarium
- Best sponge filter for a fry tank
- Best canister filter for a 75 gallon tank
Media
Price & Buying
Troubleshooting
- Aquarium filter making a rattling noise
- Aquarium Filter Not Flowing: Causes and Fixes
- Buying spare impellers before they fail
- Canister filter O-ring leak: causes and fixes
- Canister filter will not prime
- Canister intake sucking gravel
- Cloudy water after a filter change
- Filter outflow blasting fish into the glass
- Filter Too Strong for Bettas? How to Reduce Aquarium Flow
- Hang-on-back filter leaking down the tank: causes and fixes
- Impeller Magnet Coming Loose: Causes and Fixes
- Sponge filter collapsing or clogging
- Air Pump Too Loud for a Bedroom Tank: Causes and Fixes
- Air stone barely bubbling: causes and fixes