But she's only got 3 cories in there, so she's going to take most of the water out for a water change, move the tank to the new stand in the same room, with only a minimum amount of water to keep the cories covered, then fill it back up right away. I do not see even the slightest problem with this. I did this with my 29 and my 72 both with 3" gravel, took two people though with the 29 and took 3 with the 72. There's no risk of cracking with that little water in it IMO.