Well I tried today and it seemed successful! I opened the ziploc near the tub and he started smelling with his tongue, so I just slowly approached him and held the mouse about 5 inches from him. He slowly worked his way toward it. I held it with my hands just because it's easier to manipulate. He struck, so I closed up his enclosure to leave him be, I will check later tonight to make sure theres no carcass or regurg sitting in with him.