Delivery throughout the EU

OASE BioMaster² Thermo 250 – External Canister Filter with Heater (up to 250L)

Trusted by 500+ aquascapers

€218,83
  • 950 L/h for tanks up to 250 L
  • Heater built in, glass stays clear
  • Rinse the pre-filter, keep the biology
  • Quiet enough for a bedroom
  • Safe for shrimp tanks

One canister that filters and heats a tank up to 250 litres — no heater stuck to the glass, no extra cable. The pre-filter takes the coarse dirt and rinses on its own, so cleaning intervals stretch out and the bacteria stay undisturbed.

Fast delivery (1–5 days EU)

Carefully packed and protected

Tips from real aquascapers

Description

The OASE BioMaster² Thermo 250 is a premium external canister filter with integrated heater, engineered for aquariums up to 250 litres. The second generation of OASE's flagship BioMaster line brings enhanced biological filtration capacity, whisper-quiet operation, and unmatched ease of maintenance — all in a single, elegantly designed unit.

The built-in pre-filter chamber collects coarse debris before it reaches the main filter media, dramatically extending cleaning intervals and protecting biological colonies from disruption. When cleaning time does come, the pre-filter can be serviced independently — without stopping the main filter or disturbing the biological media. The integrated heater maintains precise water temperature with minimal energy consumption.

Key Features

  • Integrated heater — precise temperature control, no separate unit needed
  • Pre-filter chamber — independently serviceable without stopping the main filter
  • Enhanced biological filtration with large media volume
  • Ultra-quiet operation — suitable for living rooms and bedrooms
  • Easy-close locking clamps — tool-free maintenance
  • Suitable for aquariums up to 250 litres

Specifications

  • Model: BioMaster² Thermo 250
  • Aquarium volume: up to 250 L
  • Flow rate: 950 L/h
  • Filter volume: 9.5 L
  • Heater: integrated
  • Power consumption: filter + heater

  • Professional support

    Expert help when you need it

  • Delivery throughout the EU

    Delivery to all EU countries

  • Secure payment

    Fast and secure payment options

  • Easy returns

    Лесно връщане и замяна
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FAQ

What makes Aquarium Boutique different from mass-market stores?

We don't sell everything — we sell only carefully selected products, personally tested. Every item is chosen with a clear purpose: to work well and last long. You don't need to guess about quality — we've already done that for you.

Do you ship to my country?

Yes, we ship across all of Europe. For Bulgaria we work with BOX NOW and Speedy — fast and reliable home or locker delivery. For other EU countries we use international courier services.

How quickly will I receive my order?

For orders within Bulgaria, we typically deliver within 1–3 business days. For other EU countries — usually 3–7 business days depending on location.

Can I return a product if I'm not satisfied?

Yes. If something doesn't meet your expectations — contact us. We have a clear and fair return policy. Your satisfaction matters to us and we will find a solution.

Do you offer advice on product selection?

Absolutely. Our team keeps aquariums and knows the products personally. Write to us — we'll help you choose the right solution for your tank, budget and experience level.

Are your products tested and approved?

Yes. Every product in our store has gone through our personal selection and testing process . We only work with trusted brands and don't list products we don't believe in.

What payment methods do you accept?

We accept all major payment methods — credit and debit cards, PayPal, and cash on delivery for Bulgaria. All payments are secure and encrypted.

How can I track my order?

After your order ships, you'll receive an email with a tracking link. You can follow the status in real time directly through the courier's website.