Interesting thread. No intention to be sarcastic here. It seems like some of you here are trying to cultivate a micro tank with the worst of unwanted stuff in a jar to see what happens and how long you can get away with keeping all of them alive. Short of creating a "Pandora's Jar"?
Interesting concept. I might start one myself. I have all of the before mentioned stuff in my DT (not that I want any one them in there). Bristle worms is a specialty in my tanks. They grow so big without me finding them.
Have you tried to add some flat worms? They love my Zoa/Paly. I had no clue how to get rid of them until recently trying to dip the Zoa/Paly I have the was very infested with it and starting to spread to my other corals. Now they are all over the back wall of my 55g after having combined my 35g with the 55g thru a common sump / refugium. ( Any suggestion how to get rid of them when they are stuck to the tank, and not a coral that you can take out and dip). They did not seem to cause any harm to my corals, so I let them be beside not knowing how to get rid of them.