The shrimp is a coral banded shrimp. Some of them do cleaning duties. Ours was murderous. A cleaner shrimp is red with a white line down its back; also called a skunkback shrimp. But you're totally right how they have stations and stuff. Jeff stuck his hand near ours once while he was moving some rocks, and the shrimp came over to clean him. :D

The box fish is cool. How big was it?