Does anyone run a tank on a tile floor where the tiles are not flat, but have a bit of a raise to them and then the tiles themselves have texture to them? I am trying to determine if we can put a 75g tank or a 140g tank on the tile in the house. Both stands have leveling feet. 4 for the 75g total volume and 6 for the 140g total volume. I would say the top of the tile is about 1/4" above the grout. The subfloor is wood. Would you put something between the time and stand to help spread the weight, like 3/4" plywood?