i think that no triggers are reef safe, but i may be wrong. i know most people say angels are not reef safe either. but it might be a question depending on the individual fish, a hit or miss situation
If it was a female, it doesnt have the blue "throat"...only male Blue Throat Triggers have the blue "throat".
Those are more along the lines of a relaxed, non aggressive species of Trigger, but they will still take out hermits, shrimp, crabs, etc.
Did it look like this?
yeah, sarggasm trigggers are reef safe, they wont mess with any corals, but they will bother crabs and such.. and they are one of the few triggers that will school.