OASE BioMaster² Thermo V2 External Canister Filter

The OASE BioMaster² Thermo V2 is a premium external canister filter combining powerful filtration, convenient maintenance and integrated aquarium heating in one compact system.

Designed as the next generation of the popular BioMaster range, the BioMaster² features improved water flow and optimised water routing, while retaining OASE’s extremely convenient EasyClean removable pre-filter system.

The Thermo models include an integrated OASE heater, allowing the aquarium heater to be removed from the display tank for a cleaner, more professional appearance. This makes the BioMaster² Thermo especially well suited to planted aquariums, aquascapes and display tanks where visible equipment needs to be kept to a minimum.

Key Features

EasyClean Pre-Filter
The removable pre-filter module allows routine cleaning without having to dismantle the entire canister. Simply remove the pre-filter, rinse the sponges and reinstall.

Integrated Heating
Each Thermo model includes an appropriately sized integrated heater, keeping heating equipment out of the aquarium while providing reliable temperature control.

Improved V2 Flow
Optimised internal water routing and an updated connection system provide increased flow compared with the previous BioMaster generation.

Excellent Biological Filtration
The combination of OASE Hel-X biological filter media and filter sponges provides excellent mechanical and biological filtration for healthy, clear aquarium water.

Fine Mechanical Pre-Filtration
30/45 PPI pre-filter sponges efficiently capture larger debris before it reaches the main biological filter media, helping extend the time between major filter services.

Large Filter Capacity
Generous internal filter volume provides plenty of space for biological and mechanical filtration media.

Easy Priming
The built-in venting/priming button makes filling and restarting the filter quick and convenient after installation or maintenance.

Safe Maintenance
A shut-off mechanism allows the filter to be disconnected from the aquarium water circuit, while the integrated safety valve helps prevent accidental water leakage.

Quiet & Energy Efficient
Engineered for quiet operation and efficient power consumption, making it suitable for display aquariums in homes, offices and living spaces.

Freshwater & Marine
Suitable for both freshwater and saltwater aquarium systems.

MODEL SPECIFICATIONS

OASE BioMaster Thermo 250 V2

Ideal for smaller to medium-sized aquariums requiring premium filtration with integrated heating.

• Aquarium Size: Up to 250 L

• Maximum Flow Rate: 900 L/h

• Filter Volume: 4.4 L

• Pre-Filter Volume: 0.40 L

• Filter Power Consumption: 15 W

• Integrated Heater: 150 W

• Maximum Head Height: 1.30 m

• Hose Connection: 16/22 mm

• Hose Length: 4 m

• Dimensions: 240 × 240 × 370 mm

• Guarantee: 3 Years + 1 Additional Year on Request

• Freshwater Suitable: Yes

• Saltwater Suitable: Yes

OASE BioMaster Thermo 350 V2

A versatile choice for medium-sized aquariums, providing increased filtration capacity and flow while maintaining the convenient BioMaster EasyClean system.

• Aquarium Size: Up to 350 L

• Maximum Flow Rate: 1,100 L/h

• Filter Volume: 5.6 L

• Pre-Filter Volume: 0.50 L

• Filter Power Consumption: 18 W

• Integrated Heater: 200 W

• Maximum Head Height: 1.40 m

• Hose Connection: 16/22 mm

• Hose Length: 4 m

• Dimensions: 240 × 240 × 425 mm

• Guarantee: 3 Years + 1 Additional Year on Request

• Freshwater Suitable: Yes

• Saltwater Suitable: Yes

OASE BioMaster² Thermo 600 V2

Designed for larger aquariums requiring substantial biological filtration capacity and strong water circulation.

• Aquarium Size: Up to 600 L

• Maximum Flow Rate: 1,250 L/h

• Filter Volume: 6.8 L

• Pre-Filter Volume: 0.60 L

• Filter Power Consumption: 22 W

• Integrated Heater: 300 W

• Hose Connection: 16/22 mm

• Hose Length: 4 m

• Dimensions: 240 × 240 × 480 mm

• Guarantee: 3 Years + 1 Additional Year on Request

• Freshwater Suitable: Yes

• Saltwater Suitable: Yes

OASE BioMaster² Thermo 850 V2

The largest model in the BioMaster² Thermo range, offering high-capacity filtration for large aquariums while retaining the easy maintenance and integrated heating system of the smaller models.

• Aquarium Size: Up to 850 L

• Maximum Flow Rate: 1,500 L/h

• Filter Volume: 8.0 L

• Pre-Filter Volume: 0.60 L

• Filter Power Consumption: 32 W

• Integrated Heater: 400 W

• Hose Connection: 16/22 mm

• Hose Length: 4 m

• Dimensions: 240 × 240 × 535 mm

• Guarantee: 3 Years + 1 Additional Year on Request

• Freshwater Suitable: Yes

• Saltwater Suitable: Yes

Quick Model Comparison

Why Choose the OASE BioMaster² Thermo?

The BioMaster² Thermo is an excellent option for aquarists who want premium filtration without complicated maintenance.

Because aquarium water passes through the removable pre-filter before reaching the main filter media, much of the larger waste and debris can be removed simply by cleaning the pre-filter. This helps protect the main biological media and reduces the need to disturb established beneficial bacteria during routine maintenance.

The integrated heater is another major advantage, particularly in aquascaped and planted display aquariums. Removing the traditional heater from inside the aquarium creates a much cleaner appearance and leaves more attention on the fish, plants and aquascape.

With models suitable for aquariums from 250 litres all the way up to 850 litres, the OASE BioMaster² Thermo V2 range offers a premium filtration solution for everything from planted aquariums and aquascapes to large freshwater and marine displays.

Available Models:
BioMaster² Thermo 250 V2 | 350 V2 | 600 V2 | 850 V2