Just set this up the other day. 75g Southeast Asian River Biotope, stocked with:
Tiger Barbs (Puntius anchisporus)
Dwarf Loaches (Yasuhikotakia sidthimunki)
Zebra Danios (Danio rerio)
Flying Fox (Epalzeorhynchos kalopterus)
And planted with Java Fern and Java Moss. I absolutely adore Tiger Barbs; their energy and playfulness amuses me to no end. I wanted to set them up in a natural style aquarium, and the thought struck me to pair them up with fish from their natural range. Thus was born the SEA biotope, a 75g DAS display tank in my store. I know it doesn't look like there's much for fish in there, but I have two dozen tiger barbs, about the same amount of Zebra danios, and probably 16 or so of the Sidthimunkis, one of my all time favorite loaches. So cute!