Common Name: Scooter Dragonet (Blenny)
Scientific Name: Synchiropus ocellatus
Lovingly Referred to As: The Blen
The Scooter Dragonet spends his extire existance poking around the tank looking for food. At night, he tucks himself in the sand with only his eyes sticking out. This fish is often sold in stores as a Scooter Blenny.

Common Name: Yellow Watchman Goby
Scientific Name: Cryptocentrus cinctus
His name pretty much sums him up. Yellow... and ever watchful.

Common Name: Longfin Fairy Wrasse
Scientific Name: Cirrhilabrus rubriventralis
This is the absolute best picture I could get of this very shy fish. It's favorite activity is to weave it's way through the rocks in a constant sweeping motion, stopping only to poke at the rocks. Unlike other wrasses, it is gentle and does very little fin nipping.
To get a better look at this kind of fish, visit Live Aquaria.