Cattleya (2&1/2" pots) Seedling care/Pot Medium Advise!

[emmajs243]

Hey guys! With all the sick orchids I have rescued, I am getting so tired of having more sad cases then happy ones and so when Carter and Holmes weekly email came out and Idaho was actually NOT on the "No Shipping due to cold weather" list for seedlings, I jumped on it before even thinking through care for seedlings! So now I have two 2 & 1/2 inch pot size seedlings on there way to me and suddenly am having a heart attack with my excitement turning to worry that I will murder my first set of babies!

I have heard a lot about compots but that looks like it's only really used for newly deflasked seedlings so I would think mine are past that point?? I am newly doing s/h so I have all the supplies for that but not too much fresh supplies for anything else. I have many seedling mats so that isn't a problem but Potting media wise, what do you guys use?? I don't know how a seedling would do in s/h. I know it is normally advised to repot orchids when you purchase them but would you guys do that to fairly freshly established seedlings? (Maybe they arent considered seedlings anymore, not sure!) I would like to have repot media on hand for them just in case but just don't know what to use. Are they big enough for a type of bark or would sphag/coco husk fiber be better options?

ANY advise would be greatly appreciated!