2.) I plan on mixing/buffering the saltwater in the tank. After it settles (after a week) add the substrate, live sand in the tank and probably Araga-Mud in the refugium. Should I use a DSB in the tank and/or refugium? If not then how deep should I make the substrate in the tank. 3.) I am going to buy 60lb of LR from FFE and use it to cycle the tank to start and add more later. I am going to have the skimmer running full bore the whole time. Should I keep the lights on a cycle during the process of leave them off?