All,
I made a Cattleya purpurata #carecollab video describing care, repotting, and a desktop dive into the habitat. The video is below. I also refer viewers to the amazing post that Estacion Seca created in 2016 where he took notes from Amy Chung Jacobsen's lecture to the Phoenix orchid society, which is probably the most in-depth purpurata guide available on the internet.
Here's the video link:
https://youtu.be/1z-4fm4V2NE
Here's a link to Estacion Seca post from 2016:
All about Laelia purpurata