I have 29 gallon SW Fowlr tank that has been running for a couple months and a 2 FW tanks, a 55 gallon and 75 gallon FW tank. I want to make the 75 gallon my salt water tank now that I have learned that salt water is not that much more work than my freshwater tank, if I move my rock and possibly my sand will I avoid another cycle? I have found conflicting answers when I look online.