Help with id

[MarAquatic]

So these sprouted up on my rock I've had the rock for 8 months now any ideas

any help greatly appreciated

 

[RandyC]

I'm assuming you're talking about the white spiral shells? Is there a feather duster thing sticking out of them?

If so, most likely spirorbid worms. Filter feeders; harmless.

http://www.melevsreef.com/node/360

 

[MarAquatic]

Last pic is hard to see it kind looks like a clam in the middle

 

[MarAquatic]

I'm talking about the things with polyps and the green and purple thing in the first pic

 

[Enderturtle]

The first one is a baby mushroom. Second and third is some kind if SPS coral maybe a birdnest or pocillopora frag

 

[Flagg37]

The first one is a baby mushroom. Second and third is some kind if SPS coral maybe a birdnest or pocillopora frag

I was thinking pocillopora too.

 

[Vhuang168]

It's hard to tell with only the base.


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[MarAquatic]

I was just worried it would be a bad thing