I am fixing to be transfering tanks and and i will be moving live rock to the new tank from my old tank. My question is that the rock i currently have has coral attached and i was wondering how long it could stay out of water as i want to stack the rock in the new tank before i add the water. The rock will be placed in a holding tank with water in it so it should only be out long enough to achieve the desired look and fill the tank. Also i have a small FW issue and was wondering can i dip each pice of rock in feshwater for a period of time to eliminate the problem?