this was mine when it was healthy. got it when the central disk was about the size of a dime.
<a href="http://s6.photobucket.com/user/Ninapearl/media/TANK/brittle%20star_zpsxftx36fp.jpg.html" target="_blank"><img src="http://i6.photobucket.com/albums/y203/Ninapearl/TANK/brittle%20star_zpsxftx36fp.jpg" border="0" alt=" photo brittle star_zpsxftx36fp.jpg"/></a>
this happened almost overnight a few weeks ago. it had been in my tank for over 4 years. just seemed to happen out of nowhere. when it stopped moving around, i pulled it. really bummed me out because although it was creepy when he wrapped his arms around my fingers, he was a really cool animal and an awesome cleaner upper! at that point, the central disk was the size of a half dollar.
<a href="http://s6.photobucket.com/user/Ninapearl/media/TANK%202015/star_zpskx0yznfn.jpg.html" target="_blank"><img src="http://i6.photobucket.com/albums/y203/Ninapearl/TANK%202015/star_zpskx0yznfn.jpg" border="0" alt=" photo star_zpskx0yznfn.jpg"/></a>
i have 3 other smaller brittle stars in my tank that are all doing fine.