Ditto on the previous post.
Just want to mention one other thing. While your tank is cycling, the only way to remove ammonia and nitrites is to do frequent water changes. Buy yourself a kit that tests for these chemicals and change as much water as necessary to keep levels low. Remember, ANY amount of ammonia in your tank is harmful to fish. It won't be possible to keep ammonia at zero until your tank is cycled, but meanwhile, aim for .25.