I overfed the tank with brine shrimp yesterday, and the little angel got some. Today, though all my angels were at the top feeding time, so I guess he was just slow on the pickup. Anyway, thank you everyone for the help. I am looking into those wingless flies, they look like endless live food for less than $10! If I can figure out how to do it, it'll be fun.
Happy to hear that the little Angel ate something. Keep in mind frozen Brine shrimp isn't very nutritional so use in rotation with other foods.