That's a good looking tank. For Balitorids, the only thing I would add would be more (slightly larger) rounded stones for the bottom. These fish love caves.
Yeah, that's bee one of my concerns as well. I will probably go to a quarry over the next few days and pick up a few. Oddly enough, the sewellia fry do not seem to prefer cobble and would rather cruise the sand, as opposed to their rock clinging parents. The gastros prefer the glass panes.