Fertilize Phalaenopsis when “sprouting”?

[JLem]

Hi all...I’m new here. I have two Phalaenopsis that are currently sending up new inflorescences. The gist of my question is should I fertilize during this time? No flowers have appeared yet...and I think they’re still a whiles away from flowering.

More details:
One plant I’ve had for years and this is the first time reflowering. It was originally bought at Trader Joe’s I think. It was one of those mass produced ones anyway. The other one was part of a wedding centerpiece that held onto its flowers for over a year (summer of 2018-summer of 2019). I was shocked to see it sending up a new flower shoot so quickly. I have not regularly fertilized either one, but did so a couple months ago. I am thinking this may have “jolted” them to flower, but not sure. Anyway...I am hesitant to mess with them now that they are getting ready to flower...but I want to make sure they have nice, healthy blossoms. Any advice?