Hello drecksuck, I am sorry that you can't find the info you need. I checked the 'net for you and if you search for 'Diplocaulobium' you get a few useful hits.
I give below an URL that might be of some interest to you. Pages 165,166 and 167 has growing info for that genera. I hope you can find some relevant data to suit your species.
Good luck.
Check this out:
Dendrobium and Its Relatives - Google Book Search