I ordered FL rock and it came with tons of hitchhikers. It had an urchin that was the size of a small pea now the thing is like this size of the palm of my hand.
I also ordered some Fiji rock and when I got it it was mostly white, but after 2 weeks under my VHO lights, its purple and green and covered with coroline. Also got some orange Zoo's the hitchhiked on that rock.
I also have a few Tonga branches, they have the most colorful cololine on them.
I would order a different type of rock, your tank will be more interesting with different kinds of rock. Plus each type of rock will have different types of hitchhikers.
Gotta love the smell