Hi everyone, I'm pretty new to the club and only a couple years into bonsai. I never expected it to be so difficult to simply find good potting materials in the Denver area, and I need some guidance. Where do you all find pumice around here? And what's the best source for akadama and appropriately-sized lava? I assume the Bonsai Nursery on Federal will be a good place when they open, but I've never been before and I don't know if I can put this off any longer. Thanks for your help guys and gals.