Orchids usually suffer a little bit when moved from moss to straight bark because bark is much more open and hence drier. The shock can be reduced of course by good watering until plants grow new roots.
I grew one large white phal in north facing window, a large bay window with nothing blocking my building, so it was a bright enough.
The plant had never more than 3 or 4 flowers each time.
Then I moved the plant to south exposure and bam!
the following spring, I had 8 flowers!!!
The light makes a whole world of difference as far as flowering is concerned.
and don't get stressed out much about fertilizing. less is more. You'll do more harm than good. Trust me.
I do not water that often and things still grow and flower like crazy for me.
I think I fertilize when I feel like it.
I try and fertilize at least once a month while plants are in active growth mode.
I like to water so I water a lot.
so every week fertilizing and leaching out on the fourth watering may work but may also burn the roots and cause overfertilization, which can impede flowering all together.
I think watering, watering, watering, and then fertilizing on the fourth watering is safer while still yielding great results.
Happy growing!