What are these little guys?

[SaltyMcAfee]

hey everyone I bought a frag of some hammer coral the other day and when I got it set in the tank I noticed these strange little guys, they almost look like the feather duster worms but they are tiny, also had some aptasia which is frustrating but for a $10 frag not to bummed. I’m wondering if anyone knows what these guys are?

 

[4n2xtacy]

It's a feather duster warm I have a very tiny little one that came with my mushroom.

 

[Schnizzle]

+1 on feather dusters. I had 2 appear after adding some sketchy chaeto. They're awesome and don't require any real attention. I have one with a reddish crown and one that's more black.

 

[Eagle_Steve]

I second feather dusters. Harmless filter feeders.

 

[Schnizzle]

Just noticed your "tiny" comment. There are many different species. I haven't been able to find exactly what these are but the tubes are soft, unlike the larger "cocoa worms".

 

[4n2xtacy]

I have 3 feather dusters in total. One of them is the tiny one that came with the mushroom. The other two are big. One of them has the soft tube made with the sand substrate while the other one, the cocoa warm, has a hard shell.

 

[SaltyMcAfee]

I have 3 feather dusters in total. One of them is the tiny one that came with the mushroom. The other two are big. One of them has the soft tube made with the sand substrate while the other one, the cocoa warm, has a hard shell.

Thanks for all the responses! Just wanted to make sure! Appreciate it