best site to ID fish?

[ganowicki]

I have flat worms in one of my tanks and I would love to get a small fish to help with this problem. the LFS has a blue sided wrasse, 4 bar wrasse and christmas wrasse. Anybody have experience with any of these?? I tried to look them up on the web and I get several different looking wrasses with the same names. Is there a good website for IDing fish?

on a side note....
I have heard that Long Nose Hawkfish eat flatworms. is this true??