cattleya Precious Stones- potting

[Orchid Davantage]

I recently purchased a Precious Stones. The plant had no potting medium, just a few styrofoam pieces, even less clay pebbles and time released orchid food in a thin net. The roots are totally exposed. Should I treat it as a Vanda and mist it? So far I have soaked the roots once a week and mist it every so few days.