Separating the dirt from the water
What are some good ways to separate the "planted" side from the "water" side in a vivarium?
I'm doing one, and I was thinking I could just build a rock wall, and put like a lining of a pond-liner type material on the dirt side, and that would keep the water from getting into the dirt, and I could hide the liner with rocks and all that...
But as I think, it seems like with the weight of all the water pushing against the dirt-in-a-bag that it would warp it and mess it all up.
Is it back to the drawing board?