Quick Summary
The hygger Hang On Aquarium Filter is an external hang-on-back filter for aquariums in the 150-225 L range. It is the 680 L/H, 8 W version and includes a duckbill nozzle, shower pipe outlet and adjustable water flow.
The filter box uses three filter media, described as ceramic balls and double sponges, and also includes a surface skimmer for floating oil. The hanging design keeps it outside the tank wall, and the fixing buckle is adjustable.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Hang-on aquarium filter for external use on the tank wall. |
| Flow rate | 680 L/H, which is the stated circulation rate for this version. |
| Power | 8 W, a useful check for buyers comparing running power. |
| Tank size | Suitable for aquariums of 150-225 L. |
| Outlet options | Duckbill nozzle, shower pipe outlet and straight outlet are described for different water-flow effects. |
| Filter media | Three filter media are described, using ceramic balls and double sponges. |
| Fit check | Suitable for glass thickness up to 18 mm. |
| Dimensions | 17.5 x 9.5 x 25 cm. |
| Additional feature | Surface skimmer for floating oil. |
What to Compare Before Buying
- Tank size: This version is stated for 150-225 L aquariums. Match the filter to the size of your tank.
- Glass thickness: The hanging fit is stated for glass up to 18 mm. Check your tank wall before choosing.
- Flow rate: The stated flow rate is 680 L/H. Compare that with the circulation level you want in the aquarium.
- Outlet style: The duckbill nozzle, shower pipe outlet and straight outlet give different water-flow effects, so choose the outlet style that suits your setup.
- Space outside the tank: The filter hangs on the back of the aquarium, so make sure there is room behind the tank for the unit.
What Else You May Need
The filter needs to be filled with water before use, and it needs mains power connection to run. Check that your aquarium setup allows easy access for both.
How It Works
Water enters the filter box through the inlet pipe, passes through the stated filter media, then returns to the aquarium through the outlet pipe. The surface skimmer is described as removing floating oil, while the adjustable outlets change how the water is returned to the tank.
Before You Decide
Check that your aquarium is within the stated 150-225 L range, that the tank glass is no thicker than 18 mm, and that you have space for an external hang-on filter. If you want the 8 W version, make sure you select this size rather than the 6 W model.











