Help me choose a tankmate for my fish

[likwid]

Hey guys,

I have a 28g BioCube HQI that has been running about a year and a half now. Currently I have a Clownfish and Randalls Goby who have both been with me since after the cycle. The clownfish pretty much sits in his bubbletip anemone all day (underneath it actually, which he just started doing lately during the day), and the goby likes to hide most of the time, so I am looking for a fish who likes to swim around and has a lot of personality, but also gets along fine with the other fish I have.