Thank you all for your support. He was my wife favorite fish.
I called my 2 go-to LFS, and neither had any API General cure, or other anti-parasite meds that are safe for soaking food. So I ordered some with Amazon and free 1 day delivery. I will start with doing the food soak for all my fish now.
I’m hesitant at doing Prazi (or any harsh chemicals) on my main tank, as I have lots of random and unusual inverts that I seek out and pick up when the hitchhike into LFS stores. And of course, catching and QTing all my fish out of a big reef tank does not sound like a good time either... so the food soak will be first. Followed by a couple years of cautious observation (lol).