Yeah that's kind of confusing. Is the live rock coming out of an established tank? The reason for curing rock is to allow natural die off to complete, thereby ending the leaching of chemicals into the water. This die off occurs during shipping when the rock is out of light and water. So we need to know a little more about it. How much are you getting, where are you getting it from, how are you getting it? Having it shipped, picking it up, etc...What is the current status of it? Also, what state is your tank in right now? How long has it been established? What is in it right now? Once we know a little more info we can help you better.