FishBase

[CarmieJo]

I came across this database and thought it was really comprehensive.
Search FishBase (http://www.fishbase.org/search.php)

[graveyardworm]

Thats a great link, I've used it quite a few times, it contains tons of info just make sure to explore all the links.

[Rob]

awesome link, feel free to post that in the Talkingreef Links section (http://www.talkingreef.com/forums/local_links.php)