OASE BioMaster External Canister Filter Ver2 (250 / 350 / 600 / 850)

The OASE BioMaster External Filter is one of the most advanced canister filters on the market, combining German engineering with outstanding filtration efficiency and ease of maintenance.
Designed for freshwater and marine aquariums, the BioMaster range features a modular multi-stage design that ensures crystal-clear water, stable biological balance, and minimal maintenance time.

Each model includes OASE’s patented EasyClean pre-filter module, allowing you to clean the main pre-filter sponges in seconds without dismantling the entire unit.

Key Features:

• Multi-stage filtration: mechanical, biological, and chemical media for perfect water clarity

• Integrated EasyClean pre-filter for effortless maintenance

• Silent and energy-efficient motor for continuous use

• Large-capacity media trays for customisable filtration setups

• Quick-release hose locks and anti-leak design

• Suitable for freshwater and marine aquariums

• Available in models:

  • BioMaster 250 – up to 250 L | Flow: 900 L/h

  • BioMaster 350 – up to 350 L | Flow: 1100 L/h

  • BioMaster 600 – up to 600 L | Flow: 1250 L/h

  • BioMaster 850 – up to 850 L | Flow: 1550 L/h

• Optional BioMaster Thermo versions include built-in heaters

Usage Tips:

• Rinse new filter media before installation.

• Clean the EasyClean pre-filter every 2–4 weeks for consistent flow.

• Replace fine foams or activated carbon regularly; biological media can last years with gentle rinsing.

• Place the canister below the aquarium for optimal siphon performance.

• For marine tanks, check compatibility of optional media types.

Free delivery across Malta on orders over €35. Orders are prepared at our shop in Ħ'Attard. See our shipping and refund policies for timings and conditions.