Monk fish?

[roisnoir]

One of my favorite things is to hang out in the aquarium, watching the fish.

Which tank does the monk fish wind up in? I was kind of expecting it to show up in the tank at the back with the sharks and the yellow eel, but I haven't seen it since I donated it to the museum.
Or does it just not show up, similar to the ocean critters you collect while diving? (I would love it if we got a tank with starfish and seahorses and the like, too!)