I already have a mini moth orchid that was doing badly in a terrarium and will hopefully like its spot wedged into a cranny with a bunch of LFS, a bit of rabbit's foot fern rhizome that I'm rooting into a different spot of LFS, and a piece of Christmas cactus that I'm rooting before I try to mount it.
The driftwood is near but not directly in front of a South-facing window, and I may move it around a bit to get it into a place that the moth orchid likes. As far as I'm aware, it, the fern, and the cactus (actually an epiphyte) will like the same conditions. I hope to keep humidity up with misting and moss wrapping, and may put it over a tray if I need to.
Any suggestions on plants that can put up with lowish humidity, don't need bright lights, and happily grow mounted on wood? I know a lot of tillandisas might work, but I'd like some other suggestions. Ferns, unfussy orchid species, maybe really easy bromeliads, that sort of thing. Preferably things that don't mind being watered with tap water.
Are there any fungi that could be grown like this without badly degrading the wood they're on? I'll gladly take non-plant suggestions for things that grow on wood.
Or are there any plants that aren't technically epiphytes but can be grown in just a tiny bit of dirt? I've seen prickly pear cactus growing in trees, where they've rooted into just a tiny amount of rotted leaves, and they grow really well like that.
Also, what would be the best way to fertilize a collection of epiphytes? I imagine something spritzed onto the leaves/roots/relevant parts would be the best option.