Okay, so I just set up my 29 gallon saltwater tank, i have saltwater, live sand and live dry rock. I am looking for optinions on how to cycle properly. Right now I Have not added any bacteria or chemicals to my water, it is literally just 20 pounds of rock, about 25-30 lbs. of live sand and them saltwater. I have the filter running and the heater on. Should I Add bacteria or just let cycle. I am only going to have animals in this tank, no coral.