Aqueon QuietFlow Internal Aquarium Filter, Medium with SmartClean Technology

The Aqueon QuietFlow Internal Filter with SmartClean Technology is a quiet aquarium filter for freshwater and saltwater tanks, with adjustable flow and a medium size measuring 5.5 in (13.97 cm) L x 4.5 in (11.43 cm) W x 8.5 in (21.59 cm) H.

• SmartClean Technology lets you perform partial water changes without removing the filter — making the task simpler and helping reduce mess.
• The Bio-Holster provides space for beneficial bacteria that break down waste.
• The Aqueon EcoRenew cartridge uses carbon-infused fibers to remove pollutants, organic debris and odor from aquarium water.
• NoDrip design on the cartridge and holster helps limit spills during cartridge changes.
• Quiet operation supports a more peaceful setting for you and your aquatic life.
• Adjustable flow is designed for a range of freshwater and saltwater aquarium sizes.

Routine aquarium care can involve both filtration and partial water changes. This internal filter brings those needs together: its filter components support waste breakdown and water cleaning, while SmartClean Technology makes partial water changes possible without taking the filter out. It is made for aquarium owners who want those functions in a filter that operates inside the tank.

How does SmartClean make partial water changes easier?

SmartClean Technology allows partial water changes without removing the filter from the aquarium. Keeping the filter in place during this task helps simplify the process and reduce mess. The NoDrip design on both the cartridge and holster also helps limit spills when changing cartridges.

• The filter is designed to operate completely inside the aquarium.
• Its cartridge holder and cartridge both feature the NoDrip design.

How do the cartridge and Bio-Holster filter aquarium water?

The Aqueon EcoRenew cartridge uses fibers infused with carbon to remove pollutants, organic debris and odor from the water. The Bio-Holster provides space for beneficial bacteria, which break down waste. Together, these features give the filter two distinct roles: the cartridge helps remove unwanted material from the water, while the holster supports beneficial bacteria.

• This filter uses Aqueon QuietFlow Internal Filter EcoRenew Replacement Filter Cartridges.
• The Bio-Holster is the space provided for beneficial bacteria.

Will the medium filter fit inside my aquarium?

The medium filter measures 5.5 in (13.97 cm) long by 4.5 in (11.43 cm) wide by 8.5 in (21.59 cm) high, and it must fit completely inside the aquarium to operate properly. Compare those dimensions with the available interior space before choosing this size. Its adjustable flow is designed to support a range of freshwater and saltwater aquarium sizes; the filter is also available in extra small and small sizes.

• Size options in the QuietFlow Internal Filter with SmartClean Technology range include extra small, small and medium.
• The medium model is an internal filter, so its full dimensions need to fit within the aquarium.

This filter suits aquarium owners seeking quiet operation, adjustable flow and a way to perform partial water changes without removing the filter. Its carbon-infused cartridge, bacteria-supporting Bio-Holster and internal fit make it a practical choice for routine freshwater or saltwater aquarium care. The medium model is intended for aquariums with enough interior space to accommodate its full 5.5 x 4.5 x 8.5 in dimensions.

Read our guide: The muddy-walk routine: from field to front door