The hillstream loaches were a maybe, and were secondary to the stiphodon, which are really far nicer fish in so many ways. I'd really prefer to get more stiphodon sometime soon, so I haven't jumped at any other species.
I've been loving the tank and the natural algae look. In the past week to 10 days though, I've been witnessing the algae receding off the rocks. It's a little nerve racking to see it disappearing, exposing raw stone. I've started adding fertilizers to see if I can bring it back. There's still food, but less and less every day.