This is from one of my first dive trips with a camera on a dive site called Mystery Reef in Malaysia. Its a muck diving site in 30 metres with appalling viz and very little coral but its stacked with grey bamboo sharks. Also present is a second species of tiny shark.
If you look closely behind this moray eel (the reason I don't have a close up) you'll see the eye and leopardskin flank of a coral cat shark, a tiny eel like species of shark that crawls over rocks in the dark eating mollusks and crustaceans.
Gotta go; there's a clapper rail in the car park!