Aqueon QuietFlow Internal Aquarium Filter, Extra Small with Adjustable Flow

Aqueon QuietFlow Internal Filter with SmartClean Technology, Extra Small is an adjustable-flow aquarium filter designed to support aquarium water quality, measuring 3 x 3.25 x 6.5 in (7.6 x 8.3 x 16.5 cm).

• SmartClean Technology lets you perform partial water changes without removing the filter — simplify routine aquarium maintenance.
• Adjustable flow rate for freshwater and saltwater aquariums — adapt the water flow to your setup.
• Bio-Holster cartridge holder provides space for beneficial bacteria — support the breakdown of waste.
• EcoRenew cartridge uses carbon-infused fibers — remove pollutants, organic debris and odor from aquarium water.
• NoDrip design on the cartridge and holster — help limit spills during cartridge changes.

For routine aquarium care, removing equipment during a partial water change can add steps and make the task messier. This internal filter is made to stay in the aquarium during SmartClean water changes, with a cartridge and holder designed to help keep cartridge replacement neater. Its extra-small size is intended for aquariums where the filter can fit entirely inside the tank.

Can I change some aquarium water without taking out the filter?

Yes. SmartClean Technology allows partial water changes while the Aqueon QuietFlow Internal Filter remains in place. That keeps the filter installed during this maintenance task, rather than requiring you to remove it first. The cartridge and holder also have a NoDrip design to help reduce spills when you change the cartridge.

• The filter is designed for internal aquarium placement.
• The NoDrip design is present on both the cartridge and the Bio-Holster.
• The filter uses Aqueon EcoRenew Replacement Filter Cartridges.

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

The Bio-Holster gives beneficial bacteria a place to live, where they break down waste, while the EcoRenew cartridge uses fibers infused with carbon to remove pollutants, organic debris and odor. Together, the holder and replaceable cartridge provide the filter’s biological and carbon-based filtration elements.

• The cartridge combines fibers with carbon.
• The cartridge is replaceable with an Aqueon EcoRenew Replacement Filter Cartridge.

How do I know whether the Extra Small filter will fit?

The Aqueon QuietFlow Internal Filter with SmartClean Technology, Extra Small measures 3 in L x 3.25 in W x 6.5 in H (7.6 x 8.3 x 16.5 cm) and must fit completely inside your aquarium to operate properly. Compare those dimensions with the space inside your tank before choosing this size. An adjustable flow rate supports use across a range of freshwater and saltwater aquarium sizes; the QuietFlow Internal Filter range is also available in small and medium sizes.

• Check the available interior space against the filter’s length, width and height.
• Choose Extra Small for a setup that can accommodate the full filter inside the aquarium.

This filter suits aquarium owners looking for adjustable-flow filtration and a way to perform partial water changes without removing the unit. Its internal placement and extra-small dimensions make it a fit for tanks with enough room to hold the entire filter inside.