The largest of the triggerfish, this species is known to attack divers and swimmers, and has a nasty bite.
This individual was using it's strong jaws to pull up rocks and then grab and crabs or other large invertebrates hiding under it. The other fish in this photo - Yellowtail Coris, Clown Coris, Checkerboard Wrasse, Five-stripe Wrasse and Wedgetail Triggerfish - would also swoop in to feed on the smaller inverts before swimming off after the Titan to see what else he would rip up.
Nose to tail, I'd guess two-and-a-half to three feet. Bit hard to tell when you're in the water and trying to frame a photo! Certainly a big bugger, and I was keeping a respectful distance as I'd been told he'd threatened some swimmers in the previous weeks. And hearing him crunch coral did little to entice me closer!
