Yesterday, I posted about a random single sighting of aiptasia which popped up out of my sand bed. I sucked it up with a turkey baster and sent it to explore the local water treatment plant. Today, I noted a fanned creature sticking up and out from under a mushroom coral. I knee jerk reaction, stuck my arm in the tank grabbed the plug and before i knew it, popped it off and killed it as well. Only to think it through and learn that I had a feather duster hitchhiker. ha-ha, am i a bad person for having killed it? Do they provide anything other than a natural scape for your animals? I'd wished I'd reacted slower, but the appearance of the Aiptasia had me kicked into prevention mode. I'd like to get back the last 10 minutes.