"Bellus Angels are 100% reef safe"
It is not safe to generalize any fish as such.
What is "reef safe"? Is a fish that does not eat coral considered "reef-safe"?
To some, anything that harms coral is considered not "reef-safe". In this case a very large tang, that breaks sticks is not "reef-safe". A puffer that grinds its teeth on coral is not "reef-safe". And a goby that lays eggs on an SPS coral is not "reef-safe"
Sorry for the rant, but the more I see the words "reef" and "safe" used together, the more I am irritated by it.
"All fish are semi-reef-safe"
~Michael