The very first thing you want to do with a newly shipped batch of live rock is get it into a tub of water (or your tank if it's a new system) that is being circulated, aerated and heated to the temperature of your tank. I then remove the rocks from the tub one by one and give them a good scrub with a toothbrush and rinse them off with the same kind of water that's in the live rock tub. I monitor ammonia, nitrite and nitrate every few days and add Cycle to help get the bacteria colonization started up. If things get too smelly, do a water change. Once the ammonia and nitrite spikes have passed and nitrate production has peaked, I start caring for the live rock just as if it were part of a reef, regular water changes, additives, adjusting alkalinity, lighting and so on.