Seedlings of Pelecyphora aselliformis grow vey slowly.
Other problem of these seedlings are body shape.
Seedlings keep thin body, 2~3 mm diameter and are hard to be a round shape.
The best way to get a round plant is grafting and degrafting later.
I sowed seeds on 19/08/12 and 28/09/12, twice in this year.
I grafted seedlings germinated from 19/08/12 sowing.
It has not completed yet but I have tried to collect 12 grafted seedlings in total.
The photo is one of them, starting to grow.