OASE BioStyle Thermo 50
OASE BioStyle Thermo 50
OASE BioStyle Thermo 50
OASE BioStyle Thermo 50
OASE BioStyle Thermo 50
OASE BioStyle Thermo 50
OASE BioStyle Thermo 50
OASE BioStyle Thermo 50
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  • Load image into Gallery viewer, OASE BioStyle Thermo 50
  • Load image into Gallery viewer, OASE BioStyle Thermo 50
  • Load image into Gallery viewer, OASE BioStyle Thermo 50
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OASE BioStyle Thermo 50

OASE BioStyle Thermo 50 Hang On Back Aquarium Filter
Compact, sleek power filter – Ideal for fresh or marine aquariums up to 50 gallons.

If a conventional external filter and an internal filter are not suitable, the OASE BioStyle hang-on filter stands out with its own advantages.
In comparison to a classic external filter, no hoses need to be laid during Installation.

A cabinet with the appropriate space for positioning the filter is also not required here, and the hang-on filter does not take up any space inside the aquarium.
The Oase BioStyle filter offers a clear view of the underwater world.

Multi-stage filtration
Includes three complete cartridges that each house a 45 ppi foam for mechanical and biological filtration, a chemical mix to remove odors, impurities, and harmful nutrients, and finishes with a filter fleece for a water polishing effect

Biological filter foam
Also includes one 30 ppi biological filter foam that traps debris and offers a surface area for additional beneficial bacteria

Customizable filtration
OASE offers additional chemical media cartridges that can be added to the BioStyle filter based on your aquarium needs. OASE also offers an empty cartridge for further optimization. (sold separately)

Adjustable lever
Foot for securing the filter to different aquarium glass thickness

Telescopic intake
The transparent tube, extends from 6 in. to 14 in. for varying aquarium heights

Easy maintenance
The cleaning indicator shows when it's time to change the mess-free, disposable multi-stage filter cartridge or clean the biological filter foam

Adjustable flow control
Built-in to the filter to change the intensity of water movement and increase oxygenation, or input of oxygen at the surface


Integrated heater
Reduces the amount of equipment seen inside the aquarium by housing the heater in the unit.
Set temperature of 79°F.

Quality design
Made in Italy, with German engineering from OASE, and backed by a 3-year warranty


Fresh and marine
Compatible with both fresh and saltwater aquariums, both rimless or rimmed tanks!

Quiet operation
Sound dampening design, energy-efficient

Backed by the best warranty in the industry!
3-year warranty 

All Oase products are fully in compliance with Canadian electrical safety standards and are cULs certified!


What’s in the Box?
Aquarium Filter, heater, two multi-stage filter cartridges, two biological filter foams with reusable frames, telescopic intake with inlet strainer, and 6 ft power cable.

Made in Italy, backed by German engineeringSpecifications
Dimensions 11 x 6.75 x 8.5H in.
Net Weight  2.5 lbs.
Rated Voltage  120V / 60 Hz
Power Consumption of the Filter  5 - 15 Watts variable
Power Cord Length  6 ft.
Max. Flow Rate  250 GPH
Suitable for Max. Aquarium Volume  50 Gallons