Not eating but shedding (I think)

So I tried to feed Gene a f/t fuzzy today, because he's showing signs that he's going to shed soon and I didn't want to wait until tomorrow. I want to try and get him to eat weekly like he was with his previous owner. However, he was on live with her, and that's something I really don't have easy access to right now, so I'm trying to get him on f/t.

I'm guessing that one of the reasons he is not taking the f/t mouse is that he's starting to shed and perhaps because it is unfamiliar to him. Without the option of getting live prey, what do you wise folks suggest?