I receintly added a cluster of young feather dusters to my 10 gal tank. A few days later I found a small - 1" - white brittle star in the tank. I guess it hitched a ride with the cluster although I didn't notice it when I put it in the tank. So far it seems peacefull enough but I don't know what it eats. I do know that a large one will eat my sea horses. I also have a 30gal hex and a 45gal hex and a 2gal hex that I keep my live brine in. The 10 gal also has a couple of worms - cool looking - and a lot of very small feather dusters - about 30 or more. I've already got the 30gal set to put the horses in but I'm not sure what to do with the star. I have plenty of "Live Rock" in all my tanks if thats what it eats. Any Suggestions?