I do not understand trichopilia orchids. What do they want from me?

[Dollythehun]

I'm growing two of those. I fertilize 1/2 tsp to 3 gallons of rainwater, when I think of it. They're watered when the moss approaches dryness or 3x a week. Other than having a few crappy leaves (Oncidium family) I have no problems. Growing under nearly Catt level light with good air circulation. I recently posted the blooming plants. One is in small bark and plastic; Suavis in moss and clay.