This is a Vandacious plant and it is endemic to the Himalayas and NE of India....they have two seasons: wet and dry....the monsoon rains sometimes drench them for days and the humidity and heat of the dry season makes it dependent on morning dew for water....
you may use the Baker Vanda culture
or IOSPE PHOTOS
there are very few infos online so I suggest you go to the basic origins of this plant and its environment and try to provide it inside your home