It's alwasy a good idea to think things through, and then ask for advice.
I know someone who built his house over a natural stream. He was warned not to, and even had difficulty getting building permits and home owners insurance. Less than 10 years after he built it, there was an extremely heavy winter. When the snow melted the 'safety measures' he installed failed and half of his foundations washed out. I guess not everyone can be Frank Lloyd Wright.
But then, if all of my aquariums were to fail at the same time, I'd have almost 200 gallons of water and gravel that would make my place smell oh so good.