Yeah the brittle star came from my tank, not from the frag. I bought a piece of liverock at our LFS around 5 years ago because it was covered in the little things. Now my tank is full of them. I probably have thousands. I also have a big green 'death' brittle star that I bought 7 years ago as a bad impulse purchase. Fortunately I've never had the desire to keep any small fish with it so it has not caused me any problems. But it is huge... heres a pic of it in the bottom of an IO bucket (the white balance is off on the camera) so that you can see the size.
