Goliath Grouper, CSL Marine Park
Despite his name, this is goliath grouper is practically miniature...the biggest ones can be 8 feet long and 800 pounds!

Taken on September 8, 2013 at 12:09PM with a Olympus Imaging Corp. - Tg-1
f/2.8 at 1/500sec (iso 100), focal length: 4.5mm