What is this? it’s not a cucumber and it’s not an an anemone

[Pmauro55]

They live in my live rock. I have six or eight of them spread out over my aquarium. I can’t find anything that comes close.

 

[AndyS598]

Sea apple?

 

[ISpeakForTheSeas]

They live in my live rock. I have six or eight of them spread out over my aquarium. I can’t find anything that comes close.

Those sure look like filter-feeding sea cucumber oral tentacles to me.

 

[twentyleagues]

Can you get a pic of one out and about? What makes you say they are not cucumbers? Filter feeding varieties of cucumber too.

 

[Pmauro55]

Sea apple?

I don’t think she apples live in rocks. They are mobile like cucumbers are.

 

[Goaway]

"Hidden" Hitchhikers | Melev's Reef

melevsreef.com

Hopefully, that link can help you.

Looks like a sea apple to me.

 

[Cthulukelele]

Yeah I also seconded everyone else. It really looks like the feeder tentacles on a filter feeding sea cucumber

 

[betareef]

Yeah I also seconded everyone else. It really looks like the feeder tentacles on a filter feeding sea cucumber

Thirded.

 

[Jonny Walker]

Looks like hidden cucumbers to me.

 

[ReeferHD]

definitely a hidden sea cucumber.

 

[PharmrJohn]

I don’t think she apples live in rocks. They are mobile like cucumbers are.

Yes they are. I used to have one of these in my 90G back in the day.