Oase Biomaster 350 Canister Filter

One of the key components of having a healthy and clean aquarium is the filtration of your water. A very effective way to do this is with a canister filter. Aquarium filters in general help generate flow, absorb substances that cause turbidity, and enrich the water with oxygen.

Beneficial bacteria that settle within the unit’s filter media help to break down and remove waste from aquarium inhabitants. External filters typically have different types of filter media in several layers throughout the filter unit. These filters operate outside of the aquarium and can be conveniently stored in a cabinet under the aquarium, making them easily accessible for maintenance.

The Oase BioMaster 350 is a high-performance external canister filter designed for aquariums up to around 350L, giving you strong multi-stage filtration without a built‑in heater. It’s ideal if you prefer to run a separate in‑tank or inline heater but still want the premium build, quiet operation and EasyClean features of the BioMaster range.

Featuring Oase’s EasyClean pre‑filter module, most of your routine maintenance can be done by cleaning the pre‑filter, so you don’t have to dismantle the whole canister every time. The large media volume and multi‑stage baskets provide excellent mechanical and biological filtration, helping to keep water crystal clear and stable in community tanks, planted setups and cichlid systems.

Key Features:

• External canister filter for aquariums up to approximately 350L.
• No built‑in heater – perfect if you want to choose your own heating solution.
• EasyClean pre‑filter module for quick, low‑mess maintenance.
• Multi‑stage filtration with generous media capacity for strong biological and mechanical performance.
• Quiet, energy‑efficient pump suited to living rooms, offices and fish rooms.
• Suitable for freshwater and many saltwater applications (check media and stocking).

Specifications

• Recommended aquarium size: up to around 350L.
• High flow rate for solid turnover on medium–large tanks.
• Power consumption: low‑wattage canister filter pump.
• Includes hose, intake, outlet and media to get started.