Can you stress your fish out by moving around decorations too often?
My fish are so used to me doing things to/in their tank they just accept it. One time shortly after I got them one of my black skirt tetras lost most of its color but they are all used to me now so nothing I do bothers them. So like Hunter1 said...."It Depends" on what they are used to
I agree that it depends on the personality of your fish. I have a very out going Betta that doesn’t care what I do to his tank, but I also have 4 albino Corys that will trip if I slightly tilt a piece of driftwood.