Plectropomus leopardus

Illustration: Bloom by Day
Orange to brick red with small blue spots scattered over the head and flanks, slimmer than the rockcods and with a square-cut tail edged in dark blue. It hangs just off the coral watching the water rather than you, and when it has had enough it does not bolt but tips down and is simply gone into the reef.
Rules change. Check before you dive.