What is your favorite organism in your tank?!

[ckmullin]

Curious on what different favorites people have.

So please post your favorite living creature in your tank and why!


For the 1st post of this topic:

My favorite (so far 2 week old tank) is a hitchhiker rock anemone. I find it's a funky looking guy waddling about looking for it's spot.

http://www.canreef.com/vbulletin/showthread.php?t=94722