The BioStyle by Oase is a modern backpack filter, which is suitable for the size of aquariums up to 75 l. It does not only catch the eye with its modern and sturdy design but proves itself with many useful features. Via the filter inlet, which is vertically individualisable, the aquarium water flows towards the filter with a infinitely adjustable water flow rate from soft to very strong. The filter is simply perfect fit to the aquarium wall as a hang-on and secured with adjustable spacers. The Biostyle can be hung on aquariums up to the glass thickness of 15mm. Furthermore, the transparent intake pipe is telescopic. In the filter chamber, it consists of two filter stages for optimal cleaning; cleansed through biological as well as mechanical and chemical filtration methods. The BioStyle hang-on filter operates very silently, so nothing disturbs the experience of creating a wonderful underwater scape. A very special bonus, the filter comes with an automatic maintenance indicator which alerts when there is the necessity to clean or replace the filter cartridge.