Guidelines for each Paph subgenus?

[BegoniaTormentor]

Hi, I got into orchids about a year ago and tried out bunch of different kinds: Catts, Phals, Dends, Vandas, and of course Paphs and many more. Both hybrids and species.
Most of them are doing well.

After a year of getting the gist of orchids I decided Paphs are my thing and focus more on Paphs this year.

Anyways I am having struggle with finding subgenus-specific requirements for Paphs.
So please share your insights and experiences.

Picture features Begonia rockii. Thread without pics isn't so fun so throw that in there.

 

[Roots]

Welcome from Wa state. Your begonia looks very happy. Paphs are my thing and I am new to them also. But I am still learning how to grow them well,so I will let someone else chime in with the cultural info you are looking for. Below is the first paph that bloomed for me, Delrosi 'Teal' HCC/AOS.