identify this fish

[harryhood]

What kind of fish is this? It is about 4.5 inches long and at least four years old.

Thanks for the replies.

<img src="http://astrodawg.com/aqua/bluefish.jpg">

 

[robgardner]

definitelya damsel....could be pacific gregory? it looks like a scotts damsel, but from u'r sizing my atlas says they aren't as large as the one u have

 

[Amphiprion]

Could be a number of possibilities. Use this to see if you can't narrow it down:
http://www.fishbase.org/identification/specieslist.cfm?famcode=350&areacode=&spines=&fins=