The mandarinfish or mandarin dragonet, Synchiropus splendidus is a small, brightly-colored
member of the dragonet family which grows to about 6cm, the male being much larger than
the female. They live under coral or rubble and comes out daily at dusk - exactly.
For about ten minutes, mandarinfish mate, and it all happens very quickly - to see this
you either need to be incredibly lucky, or to have divemasters as good as those employed
by Thresher Shark Divers on Malapascua.
I chose the second option - see the last few photos...