Things are looking up! (And so is the fish)
Well, clearly Starburst (or "Bursty" as my 6 y.o. named him) is eating once in a while. He still spits out sometimes, but he's keeping some in. Not a lot, but better than the nothing he ate for the first week. I like the suggestion of adding more live plants, just haven't had time to go back to the pet store, but I'll do that. For now I'm still keeping the front of the bowl covered, that seems to help. I also bumped the water temp up, hopefully that will help him relax & be more comfortable. Thanks, everyone, for your support and suggestions.