UVC light breaks up the DNA of bacteria in air, water and on hard surfaces so they can no longer function or reproduce. It’s a natural germicide that has been used to disinfect hospital room surfaces, public places, money, and drinking water for years. In aquariums, UVC light kills suspended bacteria and algae that contribute to cloudy or murky water, while leaving beneficial surface-dwelling bacteria, such as those found in your filter media and substrate, totally unharmed! Learn more: https://