There is no real hieght limit but as suggested you can tie it into a wall or less extreme you can build the stand wider at the bottom so it tapers to the tank width, that adds a lot of stability.rkc772 said:so if we are in california and it's an earthquake state... what is the max on the height? for a 72x24x24 and a 96x30x24 be? don't want to have a flood right after an earthquake.![]()