The sera UVC Xtreme 800 is a efficient and energy saving external filter of the newest generation for aquariums from 100 up to 800 litres. The new sera UVC Xtreme 800 filter provide UV-C supported filter performance while saving energy to an extent that could not yet reached before. The modern low noise low voltage motor can be adjusted to the desired performance precisely and just as required via the control panel, and thus extends the application range of these external filters. High pump performance can already be selected in energy saving mode with wattages between 5 W - 10 W. This is possible due to a hydrodynamically optimized drive and ideal dimensioning. The sera UVC-Xtreme 800 -External Filter- include an integrated UV-C unit that is switchable via the control panel. This is operated with a specially doped and particularly powerful amalgam lamp, and ensures even higher reduction of pathogens and floating algae compared to common UV-C lamps. This indirectly supports the health