The name of the plant has now been changed to Myrmecophila Brysiana, and the Schomburgkia name has been retired. I found the following information on orchidspecies.com [emphasis is mine]:
This large sized, hot to warm growing epiphytic species is from Belize, Guatemala, Honduras, Nicaragua, Costa Rica and Colombia in low dense mangroves along rivers and seashores at elevations of sealevel to 200 meters and has fusiform-conical, hollow, sulcate pseudobulbs carrying 2, very coriaceous,ovate-elliptic, retuse at the rounded apex leaves that blooms in the winter and spring on a terminal, 3′ [90 cm] long, erect, paniculate, inflorescence partly covered by sterile sheathing bracts and fertile, triangular, acute floral bracts with many, showy flowers. Similar to M. tibicinis but different in having a distinct claw at the base of the midlobe of the lip and having 3 raised or elevated veins on the disc while tibicinis has 5 to 7. This species is often found in conjunction with ants and may benefit from theoir presence.
So it needs a warm environment with mostly shade. I have had this in the same place (second row, west facing window) since I have received it. It has grown many roots from the later pseudobulbs, and seems healthy.
I will have to wait until winter to see the results. But I can’t supply the ants…