What are these!!!

[Naterade1128]

I found several of these living on my live rock. They appeared after several months. The appear to send out projections to capture food.. I was think a sea cucumber...please

 

[Naterade1128]

He opened a little.. Looks like a sea cucumber..
Please.help

 

[Naterade1128]

I took several more pictures hoping someone can identify these little.buggers

 

[GerritM]

Yes, a sea cucumber. Maybe a Afrocucumis africana or similar.

 

[Naterade1128]

Hey GerritM do these cucumbers move at times.

 

[GerritM]

So far as I know, yes.

 

[Naterade1128]

I found 3 more. These are neat.

 

[wenwillwego]

Oh man cool hitchhiker!

 

[Mranderson]

Neat!

 

[spoggy]

Gotta be careful with cukes, if they die, feel stressed or threatened, they can release a toxin that is REALLY lethal. They're pretty small now, but watch them as they get bigger.