We will be placing a new 90 gallon tank on carpet (where our existing 46 is). Because this tank is essentially double in size and weight, I'm worried about making sure it is exactly level. Any tips or tricks on how to do this on carpet? The stand is MarineLife and flat bottomed. Should we rip up the carpet and put some plywood down on the floor instead? Leave the carpet? I'm open to any questions or suggestions!