Should I repot my Cattleya seedlings?

[Alvaro78]

Hello guys!

I recently made a purchase of some cattleya seedlings (some are species) and I have been doing research about when to repot and I found that you should only repot Cattleyas when they are in active growth when you just see roots coming out. My seedlings haven't arrived yet but my question is... Can I repot them right when they arrive to my own media as they usually come in deteriorated media or spahgnum which is not good for me? I also saw that mostly seedlings don't mind repotting and I saw some of the videos from Stephen Van Kampen-Lewis who repots his seedlings right when he bought them so it should be fine even if they don't have active growth?

Thanks a lot!