The Last Fish to Add

[maxcab]

I have a 24 gallon Aquapod and I have to pick a last fish to add.
I was hoping for some input from you people.

The three options are in the poll up there^^^^

I currently have one of the following:

Pygmy Angel (or Cherubfish)
Percula Clown (might be an O.)
Chalk Bass
Scarlet Skunk Cleaner Shrimp

Q's, concerns, comments....
VOTE!!