LOL, I have never heard of, or experienced that. I have to add Neophos to my tank to keep my phosphates up. I have heard of live rock adding stuff to your tank if not properly prepped before hand. Many, many, many, and did I say many reefers have started with dry rock and have had great success. If anything, I have noticed a rise in dino issues, myself included, and I feel it has to do with starting with dry rock because it doesn't always add what the tank need quickly enough. Don't quote me on that as its only an observation.