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OASE BioStyle 30 Hang-On Aquarium Filter, Grey
Model: BioStyle 30, Grey · US configuration
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A grey 30-size maximum-label BioStyle hang-on filter with no documented lower tank-volume endpoint.
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Explore this buying guide ↗Why consider this model?
- The 30-size adds a second cartridge and foam position versus the 20 while retaining the rear-hung arrangement.
Tradeoffs to weigh
- The exact US routes disagree on filter wattage and GPH; the 30-gallon capacity is upper-only; 1.9 L is total filter volume, not basket volume; it does not include the Thermo heater.
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