The Fluval FX UVC clarifier eliminates floating bacteria and algae using CCFL technology, which tackles green and turbid water with powerful, DNA-destroying UVC light emissions. The process works without chemicals and has no effect on the colonies of useful bacteria living on the surfaces. The Fluval FX UVC clarifier can be connected to most external filter systems by the adapters included and is highly energy-efficient at just six watts for aquariums of up to 1 500 litres.