Semi hydro. I've now since dettached them as I've seen some people say about remove Cattleya from their mount on the day if arrival and keeping them bare root for a few days so any damage develops a callous.
I removed it and really caused minimal damage; I'm quite surprised to be honest.
Do you plan on moving them to semi hydro immediately? While I do see some nice looking active root tips on the larger plants, neither seem to have any new roots starting now.
__________________ Camille
Completely orchid obsessed and loving every minute of it....