The result - since only one answer was received, that one is the de facto winner:
"A Wednesday night chicken korma (approximately half a portion) 15mm deep nestling on a bed of basmati rice!"
Congratulations to Merv, and "Bolox" to the miserable rest of you who didn't bother to have a go!
The correct answer is that it's a Stone Fish, at about 1.5 metres deep on a Maldavian reef. If you can't see the fish, click here for a clue.