swords: thanks!
zero: there's all sorts of directions that you can find online like "spray them this often, or soak them overnight every X weeks", but I grow them like the following: I have a sunny window that I put all my neps in front of. The orchids get filtered light through the neps, and the tillys get light filtered by the orchids (and neps by extension). I usually give them a good soaking by spraying them down with water once a week and let them drip dry, or sometimes a little more or less often if they're looking full of water/empty of water (something like when cacti or succulents look plump when full of water and shriveled when you don't water for a while - if you don't know what that looks like I'll try to find some pics for you). My humidity fluctuates probably something between 40-85% on the edge of the grow rack where they hang out, so if it feels more or less humid I adjust my watering accordingly because while you don't want them to desiccate, you don't want them to turn to mush either. But they're pretty forgiving in my experience.
----edit: actually, if I try to self-pollinate this thing, will it be viable seed? And if so, how in the heck do you get something like this to germinate - lay down a bed of damp coconut husk and wait? It seems like a fun thing to try. I tried to look up some websites but I didn't find anything good and recent yet - anyone know of any?