Its not recommended to have one on carpet because as the tank settles into the pile and foam it can become unstable and not level. I have one on carpet and it was suggested that I cut out a space for the tank and put down tile or something solid. Instead I screwed the stand to the floor this way if I decide to break it down, the screws will back out and other than a depression in the carpet there wont be any alterations to my floor. JMO.