Hi there Tanya, I do grow these little guys and culture is the same as Papilionanthe vandarum, or if you are unaware of that one, similar culture to Vanda coerulea. I keep them in intermediate -cool temperatures and give them shading of one layer 50% white and one layer 70% white shade cloth in an unheated glasshouse in summer watered heavily (as mine are mounted) and fertilised moderately, then, in winter it stays in an unheated g/house but shade cloth is slowly removed from the 70% layer in autumn to 50% in early winter and only then no shade cloth for the rest of winter until early spring.
Less water in winter and hardly any fertiliser. Hope that helps.
Cheers.