Ugh

This whole underwater photography thing is weird.  This photo was taken at about 9am on a sunny day about 25 feet under the surface.  Underwater visibility was cloudy beyond 10 feet, but not dark at all. A photo taken without flash came out just black.  With flash I got this (yeah, my stinkin mask fogged up,,, I've since fixed that problem).  I don't get it.  Looks like I was diving in the middle of the night....