I recon it's a coral grouper, was it orange/red with spots? If the colour was too washed out did it at least have the spots?, I can see the stripes from the photo. John is right though, there are dozens you coulden't even tell if you had the book with you.
Looks familiar, hard to judge but looks black and white to me? Off hand I'd say it was Epinephelus inermis the Marbled Grouper. I'm pretty sure it's in Debelius's book (which is at home and I'm at work) and fairly sure we saw a couple of these in November
Thanks for your help.
I thought it looked like the Malabar aswell but it is 1.2M typically which is too big and you can't make out the fin on its back from the photo.
The Greasy is not in my book but appears to be the closest match.