We are new to saltwater aquariums, only having had freshwater tanks previously. We have an Innovative Marine SR Pro 2 AIO 60 gallon aquarium and an RODI system, but have done nothing to set up yet. We think we want to order some live rock, but wanted to check that was a good idea for a brand new tank. And, if so, what was the best order to do things in? Put in the rock first to help cycle the tank, or cycle the tank first with only sand (we have CaribSea Arag-Alive Special Grade still in its bags) to not kill off any beneficial life in the rock? Lights needed first or not? We are thinking we will eventually want a tank of fish and soft corals.