I ordered the "package". The rock has more life on it than any other rock I've ever seen. However, I must warn you of some of the drawbacks...
1. Rock is more dense than fiji, hense, more is required.
2. Rock will have a lot more die-off (so I'm told) since it has so much life on it.
3. unwanted critters / hitchhikers also come with it including mantis shrimp (so far I've captured 3 and I know there are more).
Other than that, I'd recommend that you try and duplicate the natural habitat of the rock (temp, lighting, etc...) and I think you will be pleased.