cat. porphyrogossa and deckeri. and chysis limminghei

[dendro king]

hi everyone!,
i have made an order for some orchids: cattleyas porphyroglossa and deckeri, and a chysis limminghei.
what should i pot them in??? i understand that the chysis will need a different medium to the two catts but i would like to be prepared to pot them before they get here. also ( if this makes a difference ) they are seedlings.


thanks in advance.

[dendro king]

also they are coming from malaysia if that makes any sort of difference.