+1...you'll end up needing a good-sized tank for a garibaldi, and the poor bluefin would likely never eat. Even tho ours was a good eater, it wasn't voracious and was petty "particular" about it.
As for the erosa, it MIGHT be a fit, but we'll have to see how big it gets. So far, it's acting a lot like a C. multibarbus.