I purchased a Brassia orchid yesterday, or let me say, what I think is a Brassia orchid (no tag of course). It has a very long bloom spike with buds spaced out the entire length. It needs to be repotted as the roots have grown way up and over the edge of the pot and are basically everywhere. How does one go about repotting one of these? Growing Medium? Do I try at attempt to place all the roots in the medium? Its currently in what appears to be a 2.5" plastic pot. How much bigger should I go on pot size? Can they take about two hours of direct morning sun outside? Any and all info on this orchid will be appreciated.