Help ID this on my hammer coral

[echo53775]

Is this some feather duster or aiptasia? I got the coral about a week ago. I dipped the coral coral in coral rx and hydrogen peroxide dip before placing in qt tank. It retracts quickly when disturbed. Any idea what this could be? Thanks.

 

[Sophie"s mom]

We are going to need to see pics under white lighting.

 

[echo53775]

Here's more pics

 

[echo53775]

We are going to need to see pics under white lighting.

Here are more pictures with better lighting.

 

[ISpeakForTheSeas]

Yeah, that's a feather duster - harmless filter-feeder.