2 Years ago I started some cuttings from my Acer Arakawa bonsai. I used material from branches that I cut during it’s 1st styling.
Here’s a picture of my arakawa, unfortunately I don’t have any pictures from the cuttings that I took.

So now almost 2 years later it was time to put the acer arakawa cuttings that rooted into their own pot. I started with 20 or so and 9 develloped roots, not a bad ratio. The medium I used to root them in was pure perlite.

The batch that had to be repotted:

When I tried to remove the first one I noticed that I had used a fine screen mesh to cover the bottom of the propagation tray which caused the young roots to grow right trough the mesh.
So it would take some surgery to remove the roots safely without damaging them.

A cutting with the roots grown through the screen mesh:

After cutting of a small piece of mesh I had to remove the last bit very carefully.

So after performing some delicate surgery I managed to get all the roots out relatively undamaged. The root spread on all but 1 of the was pretty decent.

So now it’s time to pot them up in their new container. Again I used some screen mesh to cover the bottom of the pots. The roots that will grow through it now I will be able to just cut off with the next repot.

I used a mixture (akadama, pumice, lava, zeolyte) of the smallest sieved bonsai soil that I got when sieving my bonsai substrate. I’m not using this for other purposes but for this application it will do just fine.

After potting them up I watered all of them extensively and now it’s just wait and see if they survive. Since it’s going to be freezing in the next few nights I will keep them inside (cold room) for now.