kill em all..
Hey fellow MIssouri reefer, welcome to TRT.
I understand you not wanting anything to be at risk, thats the best way to approach this hobby. As for the clown is it tank raised? If a clown has never known a predator, it only stands to reason that some of the "instinct" you see in wild caught species won't be present.
I don't want to get into an evolution/creation topic here but look at it from this stand point.
In the wild only a few Clowns make if out of every 100,000 eggs laid (not sure about actual numbers here but its not a good ratio of you are a clown egg). Now, most of those few that live, live because they are doing something to avoid predatation. One of those things might be hosting in an anemone. However, in tank raised species, 1,000 of clowns that would have been eaten LONG before they ever reached 1 month of age, live for years...this is because even the specimens that don't actively protect themselves manage to live......
So would your particular clown have made it in the wild? Probably not heck the odds are against even the strongest of fish, but since it didn't get "weeded out" during its early days, it has managed to live a healthy life oblivious to the fact that it probably would have been fish food had it hatched in the wild.
When you look at it this way it kinda puts the "peta" people in thier place. "its cruel to keep any fish in a 4' box, when its "natural home" is the ocean. Well, most of these fishies natural home would have been the stomach of another fishy...so I guess we are doing some of them a favor.
Dave