Oncidium hastilabium with rot

[orc_kid]

Smiles from down under!

Total noob here.

Please help me out, I am eager to learn.

I bought my first orchids a few weeks ago, ten of them. All of them were mounted at the edge of my garden, outside, in part protection / part shade. Recently it has rained a lot. I haven't watered them much or often, and all of them are in extremely well draining tubes. All of them seem happy except one, which today I noticed looked rotten.

I understand it has possibly been too wet and it's unhappy.

I felt the growing media and it's very moist.




Current plan is as follows.

I've brought it inside and put it near a little heater to promote warm airflow and help to dry it out.

Once it has dried out I will mount it somewhere with more light and no rain, far from the other orchids. It's winter here so it won't fry in the sun.

Someone online said powdered cinnamon might help deter fungal growth.

Am I doing this right? Any other recommendations?