Hi Tarev, first time I heard of akadama and kanuma so I researched...which led me to forums discussing cat litter, diatomaceous earth, turface, and pumice, to name a few, as substitutes in the search for media for bonsai.
I thought bagged cactus mix would be sufficiently well-draining and would not need amending with perlite and/or other media...guess not.
Maybe it depends on own cultural practices and climate.
And so...the great soil debate continues...
-Kadie
