Snowflake Looking Things

[gregp]

I just got my live rock two weeks ago, and have noticed quite a few of these little snow flake things popping up from the rocks. Anyone know what these are?

 

[Fluff]

sounds like featherdusters/tube worms

 

[Ducky]

I agree with Fluff about sounding like featherdusters

 

[phases99]

Based on the title I first thought Foraminiferan. But they don't pop up like dusters.