So I added a feather duster to my tank about a week ago and yesterday all of the sudden, my clown fish decided he was not all that fond of it after all. I thought it was because it to was too close to his and his humbug friend's hole, but after moving him several times he continued to seek out and ram my feather duster. He didn't bite at it so much as head-butt it....repeatedly. I finally found a location where he just swims up to it, but doesn't attack it.......so far. I know butterfly fish will eat them, but shouldn't a clown be okay? Does mine have some unresolved issues?