What is this sluglike creature??

[Utahsaltnoob]

It’s creeping slowly on the back of my tank wall. It almost looks like it has tentacles.

 

[Crabs McJones]

Terebellid worm possibly.

 

[Cment]

Looks like a medusa worm. Harmless

 

[NPD_289]

Don't know what it is but my wife would scream, "Kill it!"

 

[DSC reef]

Possibly a spaghetti worm

 

[Utahsaltnoob]

Should I remove it just in case??

 

[DSC reef]

Good part of the CUC

 

[eggplantparrot]

I have the same thing and asked the same question a while back. it is a spaghetti worm. they will hide in sand and rock and send out their little feelers, gathering detritus and food. they will reproduce asexuality and you will have lots of them in time.

I find that they gather up detritus into neat piles that I can siphon up easily, and I have noticed there is dramatically reduced detritus in general after their population grew.

I personally like them but some people may find seeing their feelers everywhere offputting.

 

[KJ]

Spaghetti worm good CUC!

 

[Utahsaltnoob]

He is back in my tank. I’m surprised no one ate him when I poured it back in!

 

[eggplantparrot]

I think that bright yellow black coloration is to warn he doesn't taste too good

 

[MTBake]

Agree with spaghetti worm. Cool memeber of the clean up crew.

 

[Rodk]

It’s creeping slowly on the back of my tank wall. It almost looks like it has tentacles.

Looks like a crab migrating to another shell.

 

[Utahsaltnoob]

I took a video before I let him loose