tube worm tentacles

Hi guys, I have a tube worm anemone and it has been doing great for the past week since I added it near the bottom on the sand bed, just today i woke up to notice one of it's feeder tentacles a whole branch was seemed to have been broken off and lying on the sandbed. What could have caused...

Hi guys, I have a tube worm anemone and it has been doing great for the past week since I added it near the bottom on the sand bed, just today i woke up to notice one of it's feeder tentacles a whole branch was seemed to have been broken off and lying on the sandbed. What could have caused...