Mine started off slow to eat and shy as well. He started eating PE Mysis on the second day and now eats everything (5 months later). He's still pretty shy, but comes out to eat and will eat out of my hands before retreating for cover. He cruises the back of the tank and around a powerhead throughout the day when he's out. He did lose his blue throat though after about 2 weeks. It's faint to non-existent.
I added a female yesterday, but was really concerned after researching that it doesn't always go well. I'm pretty sure she's a female due to the coloration, but from what I've read (and the lack of color on my male now) I could be mistaken. Her fail is a golden/brownish color. I did remove my yellow angel from the equation due to initial harassment. We'll see how things are going when I get home today. Of note, adding the female brought the male to life. He was all over the tank this morning and seemed pretty happy.
