I got my first bonsai (Chinese Elm) during the summer and it came in an organic soil (no hard rocks or anything). I wanted to repot it before the spring time so that I could replace the soil. I've read the soil and repotting pages here multiple times. So from what I've gathered, it looks like I should use 2:1:1 akadama, lava rock, pumice (preferable, but having difficulty finding medium grain akadama, as the soil page recommends), or 1:1:1 (there's a premix of this exact composition on Amazon, so I was thinking of just going for that until I can find medium grain akadama). So I was going to pull my tree out to take a look at the roots and see if it needs a bigger pot as well while I'm at it. I haven't watered it in a while because it's dormant (no leaves). It actually lost it's leaves in October, started to grow new ones, then lost them again. 1. Should I be concerned about its health?/Should I water it at all before spring time comes? My plan was to just wait until spring and see if it grows leaves again.
When trying to check the roots it did not come out of the pot in a block as pictured 2. Does this mean the roots are not that extensive and it doesn't need a bigger pot? I ended up not pulling it all the way out because I wanted to have the new soil handy before dumping out all the previous soil. 3. Would the inorganic mix even come out in a block? On the repotting page, it looks like organic soil is being used, but it just says "bonsai soil." 4. Should I be using an organic component when I repot, or should I stick with the inorganic 2:1:1/1:1:1 mix that I decided on based on the soil guide? I'm just having a lot of problems understanding exactly what I should do because there seem to be some discrepancies in the info pages.