Aquarium UV Sterilizers
A UV sterilizer is basically a small enclosure that contains a UV-emitting fluorescent light bulb. The bulb is enclosed in a transparent tube, often made of quartz, that allows the water to pass very close to the bulb without it getting wet. Water passing through the tube is exposed to the UV light, usually killing any and all free-floating parasites and bacteria as well as algae spores in the water.
Many aquarists are pleasantly surprised that they need to clean the glass much less frequently when using UV. Many have noted that water clarity is also often improved
There are two important factors that determine the efficacy of a UV sterilizer. The first is water clarity and the second is 'dwell time'.
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