Thanks for the reply,
Actually I think your'e likely correct that they will clean up detritius etc., and any young will be welcome planktonic food. My concern is for the human specimens that share the environment and the potential for unwanted stings, and these guys sting. Also having this...
I read a great article here about fire worms. The knowlegable author (Rob Toonen) did not reccomend a chemicle treatment for the obvious reason of likely killing other wanted organisms.
I have a large "fish only" public display aqurium that we wish to add a refugeum to. All the infastructure is...