This looks like an interesting skimmer for a nano. JNS WS-1 Water Cyclone. Right now, I think only 1 or 2 stores in North America sells this model. I know AquaMaxx has imported other JNS skimmers and rebranded them but they have not imported the Water Cyclone.
http://www.jnsaquaria.com/2007html/p...=WS-1&lang=eng