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To clear up a few things. Near UV is UV light with short wave lengths. Not long as stated above.
Being too weak to cause any damage is too broad a statement to make any sense. Like any type lighting, it depends how many watts you are using. I would not be too afraid of a 2 watt bulb, while a 200 watt bulb may be able to do serious damage fast.
In general, corals do not fluoresce any more under near UV than they do under 420 or 480 Actinics, and Actinics are totally safe for coral and human alike.
Why take a chance for no reason.
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Thanks,
Matt
I'ld rather be in Daytona!
Avatar: Photo taken with model Asia Williams posing on my car.
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