When used in conjunction with proper fish-keeping practices, an ultraviolet sterilizer is a great way to help protect aquarium inhabitants from potentially harmful microorganisms. Ultraviolet sterilizers use a special fluorescent lamp that emits light at a wavelength of 253.7 nanometers. Aquarium water pumped through the UV chamber is exposed to this UV light and is irradiated. Free-floating microorganisms in the passing water are affected by the UV light and are no longer able to multiply. Through continual use, UV sterilizers can help manage water quality issues due to microorganisms such as bacteria, algae, and parasites.
