Filters · Hang-on-back
Aqueon PRO QuietFlow Power Filter 20
Aqueon’s catalog rates this item for aquariums up to 30 gallons.
Aqueon’s five-stage hang-on-back filter: a NoDrip floss cartridge with carbon, a Bio-Holster and Bio-Media grid for bacteria, and a slot for a specialty pad (ammonia reducer, carbon or phosphate remover). Its pump needs no priming and starts again by itself after a power cut.
Consider: Aqueon doesn’t publish the flow or the power for this filter. If running cost matters, choose a model that lists them.
US version, item 100552234. Check what’s in the box before you buy.
Tank size Aqueon rates it for
Up to 30 US gal
Choose your tank to see where it falls.
Check it against your tank →Specifications that affect fit
- Manufacturer capacity
- Up to 30 US gal
- Power
- Not published
- Supply voltage
- Not published
- Dimensions
- 7.25 × 4.25 × 7.75 in (L × W × H)
- Pump output
- Not published
- Filter circulation
- Not published
- Maximum flow
- Not published
To see what it costs to run, enter the watts on its label and your daily hours in the electricity cost calculator.
Pump output, filter circulation and maximum flow are measured in different ways. Your filter will move less water than the box says once media and hoses are in. Measure it with the flow calculator.
Before choosing this model
- Confirm item 100552234, the size 20.
- Measure behind the tank: Aqueon’s catalog gives the filter as 7.25 × 4.25 × 7.75 in.
What Aqueon doesn’t publish
- Aqueon doesn’t publish the flow rate or the electrical ratings. Don’t compare its flow or running cost with a model that has published figures.
Our buying guides size it for these tanks:
10 gallon20 gallon29 gallonBetta tankShrimp tank
Tank-size rating from Aqueon 2026 Aquatic Product Catalog, page 27, PRO QuietFlow item 100552234.
A filter rated for your tank can still be too tall for your cabinet or too strong for small fish: see how to choose one.
Check it against your tank → Something not working? See the troubleshooting guide.
Choose and care for mechanical, biological and chemical media before buying replacement supplies.
Included items & upkeep
- filter body
- PRO NoDrip floss cartridge
- ammonia-reducer specialty pad
Plan for the routine work
- Aqueon’s catalog says to change its floss cartridges every 4 weeks for best results; the NoDrip holster lets you lift the old one out without dripping.
- Leave the Bio-Holster and Bio-Media grid in place when you change the cartridge: they hold the filter’s bacteria.
- Unplug it before you take out the cartridge or the pump.
To budget for replacement media and supplies, use the first-year cost calculator. For how often and how to clean it, follow the maker’s manual.