Filter System

The JUWEL Bioflow Internal filter system, which has undergone several tests by independent institutions, has long been one of the world leaders in filter systems for modern aquariums and has proved its worth a million times over.

The JUWEL Bioflow S is the perfect internal filter for entry-level aquariums of up to 150 litres in volume.

The JUWEL Bioflow ONE is the perfect internal filter for small entry-level and nano-aquariums of up to 80 litres in volume.