EHEIM reeflexUV reduces micro-organisms in the water and eliminates dirt in the water better than ever before.
ReeflexUV is yet another typical innovation from EHEIM: due to a built-in reflector, the micro-organism-killing UV-C radiation has increased considerably. And while in the conventional UV sterilizers the water passes the UV-C lamp via detours, in the EHEIM reeflexUV it goes via a direct route. So there is no performance loss. So you use less energy. And the degree of effectiveness is 1.8 times greater. ReeflexUV should only be used to support the filter in order to reduce small organisms (micro-organisms, algae spores, etc.) in the aquarium.