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Oase BioMaster External Aquarium Filter


The Oase BioMaster external aquarium filter range meet even the most rigorous requirements. Suitable for freshwater and saltwater aquariums. This filter includes filter media, hoses, adapter, intake and outflow tube and water diffuser. An Oase Heat-Up heater can be retrofitted if you decide to change it to a Thermofilter.


BioMaster 250 – up to 250 litre aquariums

BioMaster 350 – up to 350 litre aquariums

BioMaster 600 – up to 600 litre aquariums

BioMaster 850 - up to 850 litre aquariums

Key Features:

  • Optimal filtration consists of a fine 45 ppi pre-filter sponge to optimize mechanical filtration of coarse dirt and prolong the lifespan of biological media.
  • No more bothersome dismantling of the filter - simply remove the EasyClean pre-filter module, rinse and replace.
  • The combination of mechanical and highly effective biological filtration with Hel-X ensures healthy and clear aquarium water.
  • Practical venting button for effective water suction to get started quickly and easily during installation and after cleaning.
  • Shut-off mechanism and safety lock prevent unwanted water leakage, e.g. when removing the pre-filter module.
  • You can also control the flow on the filter with the adapter set.

Additional information


BioMaster 250, BioMaster 350, BioMaster 600, BioMaster 850