Cactus / ritteri

This is a grafted Aztekium ritteri on peskiopsis.
I grafted 6 small pups one yeare ago. They have grown quite well.
I found the size of ritteri pups should be more than 5 mm. If is was less than 5 mm, hard to get successful grafting result.

I added 5 more graftings 6 monts ago. They are smaller but looks all right.