Thank you, estación. It is mostly bark. I also had some coco chunks and put it in there for more moisture retention since the heater makes the air so dry and sphagnum moss was too moisture retentive.
I use a pump sprayer (all living things brand for reptiles/amphibians) instead of soaking the pot like I do with my succulents.
I purchased the bark mix (perlite, charcoal and medium bark) from here
CalWestTropical
Here's the specific stuff I bought
1/4 CF Medium Orchid Mix
It's more bark mix than coconut husks. Do you think it best if it were only the bark mix? The visible roots are white every morning so I don't think the whole pot is retaining too much moisture.
Edited to remove excessive link text and correct mister brand name