Very interesting! Please past updates!

Thanks, I plan to, as I said at the end of my post.

Very nice !

Checked it yesterday, it's grown a lot.

Seeing how nicely it's coming along, I switched the set up to a shorter, but wider container, so should this little Hahnii want to open more rosette-like sideways, it'll have more room.

I'll post updates, as warranted.

May I make a suggestion? Use two pots: outer one with water and inner one with Leca stones and plant. You might want to put something (a cork) on the bottom of the outer one just to adjust the level of the inner pot. This way you will be able to control the water level and possibility of rot will be less. I am going hydro myself at the moment with two hahnii varieties. So far, both are keeping up nicely and I wish you success with your plant!