If the seedling has started growing a pseudobulb, it most likely has been successfully hardened off to some degree.
In order to complete the process of hardening off the seedling, you can now start to acclimate it to drier conditions slowly.
Do not repot into a larger sized pot until they start filling up the shot glass pot to the edges.
Depending on the kind of orchid it is, you may start to gradually wean the seedling off to a drier potting media as well. If it is one of those orchids that likes to grow in lots of moisture, I'd leave it alone in the potting media it's currently growing in for now.
Potting media choice is often dependent on what kind of orchid you're dealing with and what the conditions of your growing area is like.
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Philip
Last edited by King_of_orchid_growing:); 05-24-2013 at 04:38 AM..
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when to put my baby seedlings in a bigger pot
.I received a flask of seedlings a few months ago. I bought my own shot plastic glasses and put drainage holes in and put in those with perlite and spag moss. they have now started to develop the psudabulbs and the leaves are getting bigger :biggrin :, so when do I need to repot again and with which kind of medium. 
thanks. your comments would be very much appreciated.
gongora scaphephorus
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