Beginner Gardening: Has anyone grown Sinningia from seed?, 1 by Sneirish

Sneirish wrote:
I received a packet of seeds (more like dust!) of Sinningia linneata in a swap. I love plants of all kinds in the house as well as outside, and being the adventurous type, I decided to go ahead and try. They were sown on Nov 10, and now I have the cutest tiniest seedlings that are about a month old and just starting to show almost microscopic-sized second sets of (true) leaves. They are in a tray of moist African Violet potting mix, under a light about 12-14 hours a day, inside a "terrarium" which keeps in the humidity. Since they have done well so far, I figured this was the right thing to do. Now I'm kinda wondering where do I go from here. There doesn't seem to be a lot of specific info out there for growing these from seed. I do know that they will eventually form a tuber and that it will take many months before they will flower.

But what I'd like to know is any kind of timeline for what to expect when.
Do I just continue to care for them the way I have been up to now?
When would it be the right time to transplant/pot them up?
How long should it take before they begin to develop the tuber?

If anybody has any info, I'd be so appreciative to hear it. These will eventually be beautiful flowering plants, and I hope to have plenty survive to keep and trade, and maybe sell a few too.
Thanks in advance for any advice.