What Kind of fish is this
 

I was given a few fish and being pretty new to salt water not sure what this is.Yellow on top and black and blue fins on the bottom

http://i683.photobucket.com/albums/v...i/DSCN3426.jpg

Looks like a Bluefin Damselfish. Not bad as juveniles but nasty little buggers as they mature.

Bit of info on your fish. Keep an eye on them as Lance said they get very aggressive and well probably wont like each other as he grow.

http://www.liveaquaria.com/product/p...765&pcatid=765

Here's a link to your new fish. The smaller ones like the yellow tail are fine but your probably going to wish you didn't have those two. I had a domino that terrorized my tank so bad that I just about tore my system apart to get him.
Never again

http://www.liveaquaria.com/product/p...765&pcatid=765

+1 Fish Trap

I have one of those, he was cute when he was small, but now he's not so cute anymore :twised: Loves to pick on my wrasses and sometimes the fish smaller then him.

This is what he looks like now and he's 3 inches big. The colour turned out good in this pic. he really looks more black then blue.

http://i261.photobucket.com/albums/i...n/DSC_1783.jpg