Cacti grown from seeds, 9 months later. They were transplanted into a cactus dish a month ago. The losses amounted to 70% of the seedlings that sprouted last spring. Most of the cacti shriveled up and died for reasons unknown to me.
Given the losses and the fairly labor-intensive care, growing cacti from seeds is a thankless and nerve-wracking task. Master class on growing cacti from seeds.