Join Date: Mar 2013
Location: Montgomery Village (back to NYC soon!)
I am also researching this right now; it looks like the tank is the smalles of the Do-Aqua line of cube tanks, and the substrate ball I believe is rocks tied together with some type of moss. The "Wabi Kusa Guy" online has some information on it.
I am also trying to get one of these going but find information on them to be rather lacking.