I had a 55 gal tank that was overrun with green hair algea. I wound up taking this tank down and just focusing on my larger tank. I had some live rock in the tank which I was going to store until I could sell the tank. I forgot to put water in it, and then the next day I called the LFS and they said that it would be ok to store it without water-that it would kind of hibernate....I'm just wondering if anyone has heard of this or are these things just plain old rocks now?