i don't really know about the citrata or fastuosa,
but i am in complete love with angracoids. as per my experience, plants DO LOVE to be mounted more than in a pot.
i do grow other aerangis, (getting citrata & pumilla (hyladoides) during my next visit to California (sept 9) .
i do grow around 9 different species of aerangis, and based on my observation and conditions, high humidity + good airflow + around 1800FC of light encourage vegetative growth, on mine. besides the spiculata that is QUITE SLOW GROWER for me the rest seems to be growing quite fast, , some of them are already spiking(biloba, macrocentra, luteoalba).
i am also looking for Aerangis fastuosa too!! so if anyone knows of a vendor within the US. please let me know!
Antonio.