Thankyou Michelle. Look forward to seeing you more here at RB.
The branched tree thingy you refer to is a "Yellow Gorgonian". I am getting a new light soon and I will move this to the back of the tank as it does not need a lot of light. Some of the things in the tank are just sitting there. We are always looking at stuff and before we give everything a home we want to be sure we like it where it is. Its a lot of fun!
Here is a website you should know about if you are getting into the saltwater hobby (IMO). Click this link and they have some more info on the gorgonians.
GARF'S ALL ABOUT CORALS - GORGONIANS