Saw this on live rock a few weeks ago and it disappeared. Saw it again last night and took this video before it disappeared again. Anemone?? good or bad?:fish:
very cool....as mentioned it looks like some type of filter feeding feather duster worm by the way the arms retract quickly when something is caught...JMO
Definitetly NOT an aiptaisa or feather duster. Could be cuke, medusa or possibly a tiny basket star. Hard to tell without being able to see the "body" and a more macro look at the mouth.
I had one of these in my reef a few years ago. No one was able to ID it. I didn't have any problems with it though. Mine didn't move. It just retracted its "tentacles" into its body.