Crassula radicans is related to crassula ovata, the "jade tree". But it is smaller and tends to grow more horizontally, thus is know as "carpet jade".
I took this small crassula radicans seedling which my friend Moonlie gave to me for my birthday and tried to do some early work to turn it into a miniature jade tree. I think its diminutive leaves make it ideal for a small bonsai.
I didn't do too much to the tree as I was frightened of killing it and it is very late in the growing season. I removed the nursery compost, which I think was mostly peat and also removed some of the lower branches so that it has a more exposed trunk and looks a bit more tree-like.
I potted the tree in a small clay pot in a 50/50 mixture of perlite and moler clay. This should be ideal for a succulent since it is very free-draining, but is also purely inorganic so the tree will need to be fertilized regularly.
The pot is quite large for the tree at the moment, but I hope it will grow into the pot next year.
More pictures on my instagram