Wire mounts for Vanda and Renanthera

[Paschendale]

While I'm about it, another question....

If this has already been addressed, I apologize and please point me to the appropriate post

I have read a bit about being able to grow Vandas and Renantheras on nothing more than a piece of wire that hangs from a wall or on a treelimb and would like more information about how this is done. That just boggles my mind that some sort of potting media is not needed and I wonder how the plant takes nutrients and how you would fertilize such a plant. If it truly works, I would love to try it.

Having said that, what is the best way to pot or mount the types of orchids for long-term enjoyment, both for myself and the plant? I plan on moving them out onto my covered patio once the weather is warm enough and just have them inside during the cold weather.

Thanks again in advance!