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Tuesday, January 20th, 2009
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Pink Mushroom

This is a pink mushroom coral that has been thriving in our tank for many months. At night, under the blue "moon" lighting, it fluoresces a shocking orange. This is because the blue LEDs that serve as the lighting are, I believe, actually ultraviolet LEDs that generate the blue color with a blue fluorescent coating, and some of the ultraviolet gets through... hence the orange color of the mushroom at night.

It is about three inches across when fully open, as here.

#aquarium

EXIF:

Width: 1960
Height: 1304
Company:  Canon
Camera:  Canon EOS 50D
Shot On:  2009:01:20 18:17:57
Aperture:  ƒ/8.0
Focal Length:  35.0mm
Metering Mode:  Spot
Exposure Mode:  Auto
Flash:  Did Not Fire
Exposure Time:  1/25th second
Exposure Program:  Aperture Priority
ISO:  1600

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