I lost my 3 year old female clownfish, I assume anyway. She was gone after my vacation and this guy is all over the tank. If it was near the nest area she could have tried to protect the area. They are venomous but other than that it is in a large reef, your main concern is not having your hands too close. I think I read it could paralyze a person for up to 6 hours..... Not to count the pain of the sting.
But I like crazy stuff so I got one, I know I am not alone in that