Butterfly fish, like other daytime coral reef fish, must sleep at night because they can't see in the dark very well. Fish that can see in the dark take over the reef after sunset. © http://www.thread-of-awareness-in-chaos.com/order.html
{"Image Orientation": "Horizontal (normal)", "Image XResolution": "96", "Image YResolution": "96", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "ACD Systems Digital Imaging", "Image DateTime": "2011:01:04 10:41:24", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "174", "EXIF SubSecTime": "775", "EXIF ExifImageWidth": "320", "EXIF ExifImageLength": "426"}