First let me, someone also in the metro area, say welcome to the forum! It's a slippery slope when a CP grower stumbles into the world of orchids
(former CP grower myself
, long back story to why it's former but not important now).
Phal's have a love hate relationship with me, but I'll share what I do for care and other members who have phals that like them will step in to give further detail.
- Water once a week (let the medium dry out before watering again)
- Bright indirect light (if you've been in the US Botanical garden in DC you've seen that the main orchid house is very dim).
- The sphagnum moss will be okay as a medium for a while but I recommend switching to a bark mix later on.
- As for info on pots, other member can give you better info. Since I keep mine loose and partially mount them in the summer. The humid VA/DC spring and summers are an orchid paradise