Unique biocube stocking ideas?

[BC1906]

So I am currently have a biocube 29 and I am setting up a 55 gallon cube. I will be moving all of my livestock and corals to the new tank. I know there are countless threads on stocking ideas for a biocube but I'm looking for something unique I could put in it Perhaps just a single fish of some kind. Was thinkingof a snowflake eel but that will eventually get too big for the tank. Just looking for something unique I could add to the tank. Any ideas?

 

[helen ann]

Hmmmmm, maybe a Leaf Fish:)

 

[Ick_Magnet]

My vote would be for gumdrop gobies