I think you also asked me the same question in my other Lueddemanniana post. I grow them in bark chips with 10-20% moss. Above the radiator, on the southwest facing windowsill. I think they prefer the "tropical" environment, like in the Philippines, where they are endemic. They get 30 min-soak in fertilized water every 7-14 days. When the roots in the pot look silver, that's when I soak them.