Live Rock Hitchhiker - gray blob?

[amartinson332]

So while I was taking care of a small population of vermetid snails, I noticed this small gray blob on the live rock. After an hour or so, it had moved to a completely different part of the rock, and then ten minutes after that moved again. It looks similar to some sort of star fish but I can't tell exactly what it is?

 

[jraker]

Asterina Starfish. Some eat corals, some don't. I found one on a zoanthid once, so I went on the safe side and removed it. I haven't seen any since. If you leave it in the tank, be aware that they can reproduce like crazy and you tank will soon look like a bunch of tiny snowflakes everywhere.

 

[amartinson332]

Thank you! Removing it now, just to play it safe.

 

[reef thief]

Destroy the creature. Search for more. Destroy those.