I will never buy that one. It may be true of maricultered rock but not live rock. What makes live rock unique is that some of the organisms settle on live coral and become part of the actual structure as it is built. Putting a dead rock or a manufactured rock into the ocean is not the same thing.Still waiting on the results of the Biome investigation @Bulk Reef Supply is conducting. The most recent update on facebook made it seem like live rock doesn't provide as diverse a biome as other options...