Yeah, I would just use the spray stuffYes I have the spray. But you don't want to fertilize while blooming. I also have the liquid fertilizer that you dilute, that smells like sewage. You are supposed to stand them in that for ... 30 minutes, I think? I did that when they seemed really dormant. Once. It really is eye-watering stinky.
I take care of a friend’s plants once every couple months because they go on lots of trips, and she’s got an orchid. It’s been blooming when I’m there, but she said it doesn’t always bloom each year. Her instructions were to give it two drops of water a couple times a week 
