Saltwater fish!

[Coralgurl]

Did you buy a new set up or an established tank? If its a new set up, you need to let the tank cycle. Pick up test kits and learn how to use them. Ask a ton of questions here. Be wary of lfs advice.

Tell us a bit more about your tank (equipment, lighting, filtration) and what you'd like to do with it. That will help get you the advice you need to get off to a good start!