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SKU: 84063

BioStyle Thermo 50

$24.99 $80.99
Shipping calculated at checkout.

Description
  • Sleek, compact hang-on-back power filter designed for easy installation, operation, and maintenance. 
  • Includes three 45 ppi multi-stage filtration cartridges with filter foams and a chemical mix. Also includes three 30 ppi biological filter foams with reusable frames.
  • Cleaning indicator shows when it’s time to replace the disposable cartridge or clean the filter foams.  
  • Built-in adjustable flow control helps change the water flow and increase oxygenation. 
  • Integrated heater (with a set temperature of 79°F) reduces the amount of equipment seen inside the aquarium.
  • Ideal for fresh or marine aquariums up to 50 gallons 

Specifications
  • Dimensions
    11 x 6.75 x 8.5 inches (279 x 171 x 216 mm)
  • Weight
    3.2 lbs. (1.5 kg)
  • Rated Voltage
    120 V / 60 Hz
  • Power Consumption
    5.5W (filter), 200W (heater)
  • Power Cord Length
    6 ft. (2 m)
  • Max. Flow Rate
    250 GPH (950 LPH)
  • Recommended Aquarium Size
    50 gallons (180 L)
  • Suitable for
    Fresh and marine water
  • Warranty
    3 years

What's Included

Aquarium Filter, heater, three multi-stage filter cartridges, three biological filter foams with reusable frames, telescopic intake with inlet strainer, and 6 ft. power cable

Spare Parts

Payment & Security

Payment methods

  • American Express
  • Diners Club
  • Discover
  • Mastercard
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Why the BioStyle?

  • Multi-stage filtration

    Experience crystal-clear, odor-free water with our BioStyle multi-stage filtration system. Its unique cartridge combines five different filter media to eliminate impurities, harmful nutrients, and odors.

  • Biological filter foam

    Each BioStyle includes biological filter foam(s) with a reusable frame that traps debris and offers surface area for beneficial bacterial growth. The number of cartridges and foams inside the unit depends on the filter size.

  • Customizable filtration

    If you're looking for customizability, activated carbon and phosphate binder cartridges can be used in the BioStyle filter based on your aquarium needs. We also offer an empty cartridge for further optimization. Each sold separately.

  • Adjustable Lever

    For easy installation, the BioStyle offers an adjustable leveler foot, which helps secure the filter to different aquarium glass thickness.

  • Telescopic Intake

    The transparent telescopic intake tube of the BioStyle extends from 6 inches to 14 inches for varying aquarium heights.

  • Adjustable Flow Control

    Built-in to the BioStyle is an adjustable flow control to change the intensity of water flow and increase oxygenation, also known as the infusion of oxygen at the water's surface.

Clean, Clear Water. Effortless Filtration. 

BioStyle power filters offer reliable performance, quiet operation, and easy maintenance in a compact, hang-on design.

  • Sleek, Space-Saving Filter 

    BioStyle mounts directly to the back of your aquarium; it’s a smart choice for minimalist setups or tanks with limited space.

  • Multi-stage Filtration 

    The included multi-stage filter cartridges and filter foams clean on all mechanical, chemical, and biological levels for a truly healthy aquarium. 

  • Adjustable Flow 

    A simple flow control dial lets you fine-tune circulation based on tank size and livestock needs. Ideal for calm freshwater setups or tanks with delicate plants and fish.

  • Maintenance Alert

    EasyClean maintenance indicator shows when it is time to change the mess-free, disposable multi-stage filter cartridge or clean the biological filter foam.

  • Quiet Operation 

    Designed for smooth, low-noise performance with minimal power usage, BioStyle delivers effective filtration without disturbing your space.

  • Integrated Heater

    Reduces the amount of equipment inside the aquarium and protects inhabitants from coming into direct contact with the heating unit.The heater’s pre-set temperature is 79°F.

  • Adjustable to Your Tank’s Needs 

    The built-in leveler allows you to securely position the filter flush against tanks of different thicknesses, while the clear telescopic intake extends from 6 in. to 14 in.

  • Reliable & Backed by Warranty

    BioStyle 50 filters are ideal for freshwater and saltwater aquariums up to 50 gallons (200L). Italian-made, German-engineered, and UL certified for safety. Enjoy a 3-year warranty.

  • Award-winning Design 

    Winner of the Red Dot Design Award 2023, BioStyle was recognized for its compact, hose-free setup that blends into any space.

Customize Your BioStyle 

Enhance performance with optional media cartridges tailored to your tank's needs. Choose from other media options or use an empty cartridge to add your own media for a personalized setup.

View All Optional BioStyle Media
Steps 1-3 of how water moves through BioStyle power filters

How it Works 

  1. Water is pulled up through the intake and into the filter.
  2. The water flows through the filter chamber that houses the multi-stage filter cartridges and biological filter foams. The water circulates through different filter media, which collects debris and provides optimal water quality and clarity. In Thermo models, the water is simultaneously heated by the integrated heater.
  3. The clean, clear water exits out of the filter and back into the aquarium via the spillway.

  • Instruction Manual

    Enjoy the simplicity of operating and maintaining your BioStyle. All the setup and maintenance guidance you need is located in the instruction manual here.

    Download Manual

  • Articles and Learning

    Start your adventure today. Learn the art of aquarium keeping, from choosing the right tank to designing a flourishing underwater habitat.

    Start Reading

Other Ways to Shop

Whether you prefer personal assistance and expertise from dealers or the convenience of online shopping, there are multiple options available to suit your needs.

Where to buy
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lever","id":31655376879836,"position":15,"preview_image":{"aspect_ratio":1.0,"height":3000,"width":3000,"src":"\/\/us.oase.com\/cdn\/shop\/files\/OASE-84069-BioStyle-50-leveler.jpg?v=1746449737"},"aspect_ratio":1.0,"height":3000,"media_type":"image","src":"\/\/us.oase.com\/cdn\/shop\/files\/OASE-84069-BioStyle-50-leveler.jpg?v=1746449737","width":3000},{"alt":"OASE BioStyle Thermo 50 Packaging","id":30002091229404,"position":16,"preview_image":{"aspect_ratio":1.0,"height":3000,"width":3000,"src":"\/\/us.oase.com\/cdn\/shop\/products\/OASE-84069-packaging-2.jpg?v=1746449738"},"aspect_ratio":1.0,"height":3000,"media_type":"image","src":"\/\/us.oase.com\/cdn\/shop\/products\/OASE-84069-packaging-2.jpg?v=1746449738","width":3000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan data-contrast=\"none\" lang=\"EN-US\" class=\"TextRun SCXW122645068 BCX8\"\u003e\u003cspan class=\"NormalTextRun CommentStart SCXW122645068 BCX8\"\u003eSleek, c\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW122645068 BCX8\"\u003eompact\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW122645068 BCX8\"\u003e \u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW122645068 BCX8\"\u003ehang-on-back \u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW122645068 BCX8\"\u003epower \u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW122645068 BCX8\"\u003efilter\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW122645068 BCX8\"\u003e designed for easy installation, operation, and maintenance.\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"EOP SCXW122645068 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan class=\"EOP SCXW122645068 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003eIncludes three 45 ppi \u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentStart SCXW267208177 BCX8\"\u003emulti-stage filtration \u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003ecartridges \u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003ewith filter foams and a chemical mix\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003e. \u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003eAlso\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003e includes three 30 ppi biological filter foams with reusable frames\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003e.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan class=\"EOP SCXW122645068 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan data-contrast=\"auto\" lang=\"EN-US\" class=\"TextRun SCXW72390874 BCX8\"\u003e\u003cspan class=\"NormalTextRun CommentStart CommentHighlightPipeClicked CommentHighlightClicked SCXW72390874 BCX8\"\u003eC\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW72390874 BCX8\"\u003eleaning\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW72390874 BCX8\"\u003e indicator shows when \u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW72390874 BCX8\"\u003eit\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW72390874 BCX8\"\u003e’\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW72390874 BCX8\"\u003es\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW72390874 BCX8\"\u003e time to replace the disposable cartridge or clean the filter foam\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW72390874 BCX8\"\u003es\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW72390874 BCX8\"\u003e.\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentStart CommentHighlightClicked SCXW72390874 BCX8\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"EOP CommentHighlightPipeClicked SCXW72390874 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan class=\"EOP SCXW122645068 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003e\u003cspan class=\"EOP CommentHighlightPipeClicked SCXW72390874 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan data-contrast=\"none\" lang=\"EN-US\" class=\"TextRun SCXW50920752 BCX8\"\u003e\u003cspan class=\"NormalTextRun CommentStart CommentHighlightPipeClicked CommentHighlightClicked SCXW50920752 BCX8\"\u003eBuilt-in a\u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW50920752 BCX8\"\u003edjustable flow control \u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW50920752 BCX8\"\u003ehelps \u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW50920752 BCX8\"\u003echange the water \u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW50920752 BCX8\"\u003eflow \u003c\/span\u003e\u003cspan class=\"NormalTextRun CommentHighlightClicked SCXW50920752 BCX8\"\u003eand increase oxygenation.\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"EOP CommentHighlightPipeClicked SCXW50920752 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan class=\"EOP SCXW122645068 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e\u003cspan class=\"NormalTextRun SCXW267208177 BCX8\"\u003e\u003cspan class=\"EOP CommentHighlightPipeClicked SCXW72390874 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e\u003cspan class=\"EOP CommentHighlightPipeClicked SCXW50920752 BCX8\" data-ccp-props='{\"134233118\":false,\"201341983\":0,\"335559739\":0,\"335559740\":240}'\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan data-contrast=\"auto\" lang=\"EN-US\" class=\"TextRun SCXW238978371 BCX8\"\u003e\u003cspan class=\"NormalTextRun CommentHighlightRest SCXW238978371 BCX8\"\u003eIntegrated heater (with a set temperature of 79°F) reduces the amount of equipment seen inside the aquarium.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eI\u003c\/span\u003edeal for fresh or marine aquariums up to 50 gallons \u003c\/li\u003e\n\u003c\/ul\u003e"}