I have two feather dusters. The first one I got is a champ, he's huge and does well. He's dug himself into the LR
nicely and seems to being doing fine. I target feed him DT's plankton.
My second feather duster was smaller and fell victim to my black spiny sea urchin. I came home one day and the urchin was eating a peice of his crown that he had torn off. After that I didn't see my duster for the longest time. This Sunday when we were doing a water change and general tank clean I told my boyfriend that we should pull the duster out cuz I thought it was dead. Well, we pulled him out but he wasn't dead so we relocated him to a better spot and he actually came out later that day. It was the first time we had seen his crown since the "munching incident". The crown was smaller but it will grow.
I love my feather dusters, I love watching them come out and spread their little "fingers" everywhere.
I don't have any stars in my tank, but I have read that chocolate chip stars eat stuff...so beware.