Salt between 1.023 an 1.025. Live rock is only alive if kept in saltwater...ie if it dries out it is no longer live rock.
I liked the ammonia method and with live rock the cycle may not take as long. Read up on nitrogen cycle if not already familiar. There was a great step by step ammonia cycling link posted in a thread on this site at one point...you may search for it as it walked through the setup start to finish.
ACE hardware sells a brand called 'Ammonia Janitorial Strentgh Formula' which has no additives and it is what I used to cycle my tank. Need to dose to 4ppm (oh yeah, you need a load of testing kits if you don't have any yet, ammonia, nitrite, nitrate, ph)
"What kind of name is Poon?"
29 gallon hex, canister filter, too much live rock, two powerheads. Tank setup June 2012. Two clowns, fire shrimp, 2 chocolate chip starfish, 3 snails