worm with tentacles? id help please

[Jack_L]

it is about 1inch long and was streched out a bit further, its clearish, and you can see what i guess is poop moving through it and out the back, but its doing it fast, you can see it chunks moving along. it has itself wedged in a crack.

 

[JGT]

it is about 1inch long and was streched out a bit further, its clearish, and you can see what i guess is poop moving through it and out the back, but its doing it fast, you can see it chunks moving along. it has itself wedged in a crack.

Small cuke.

 

[Jack_L]

still photo

 

[Üter]

still photo

medusa worm

 

[AlvinDiver]

With the way it's tentacles are moving, I'd guess it's a sea cucumber.

 

[AlvinDiver]

medusa worm

Ah yeah. maybe Medusa worm.

 

[Jack_L]

Small cuke.

thanks, AI said aptasia, which i was fairly certain it was not. should i remove it? also wondering how it got in there. something that big i would have seen on the coral frags. maybe the oceans direct live sand? or a portain of Caulerpa? it would have blended with that. in my fresh tanks my water lettuce got INFESTED with glass worms, they were so hard to see.

 

[Lunasea_5]

I would agree - the structure of the tentacles, how they move, and the body shape say cucumber

 

[JGT]

As others have said could be Medusa worm as well but it looks like a cuke to
me. I’d keep either.

 

[AlvinDiver]

Feather mouth sea cucumber.

Sea cucumber

 

[GSPClown94]

should i remove it?

Remove the AI, keep the sea cucumber

 

[Jack_L]

Remove the AI, keep the sea cucumber

Someday I will try to return the favor

 

[Jack_L]

AI also told me to add 1 gallon of chlorox to my tank when i was switching from fresh to salt. i didn't do that.

 

[AlvinDiver]

No no... you're supposed to DRINK the chlorox when switching... AI ruining everything.

 

[landlubber]

thanks, AI said aptasia

Don't use AI for reefing. It fails to understand nuance and is more likely to make an issue worse than better.

 

[Privateye]

It doesn't look anything like a medusa worm to me, or any kind of spaghetti worm really.

The mouthparts do look like filter-feeding sea cucumbers though, so I'm going with that. It's like a tiny sea apple! It even cleans the tentacles similarly.

 

[Üter]

@ISpeakForTheSeas
what is this?

 

[ISpeakForTheSeas]

@ISpeakForTheSeas
what is this?

It's a sea cucumber; I can't technically say for sure from the pic what kind (there are a lot of translucent/transparent cukes, and I'm not familiar with all of them at present), but if it doesn't have any tube feet, it's a "medusa worm."

Yeah Medusa Worm is a term generally used to refer to specific kinds of Apodid (taxonomic order Apodida) sea cucumbers (though the term is also applied to Loimia medusa, a type of Spaghetti Worm, and is sometimes generalized to mean any kind of Spaghetti Worm - spaghetti worms are from the taxonomic family Terebellidae).

(I recently learned about Molpadid cukes which also lack tube feet, but these have distinct tails [usually] and a respiratory tree - basically lines of gills inside the body - while Apodid cukes don't; this is useful in cases where the cuke is translucent/transparent to easily differentiate).

 

[Üter]

It's a sea cucumber; I can't technically say for sure from the pic what kind (there are a lot of translucent/transparent cukes, and I'm not familiar with all of them at present), but if it doesn't have any tube feet, it's a "medusa worm."

(I recently learned about Molpadid cukes which also lack tube feet, but these have distinct tails [usually] and a respiratory tree - basically lines of gills inside the body - while Apodid cukes don't; this is useful in cases where the cuke is translucent/transparent to easily differentiate).

looks a lot like this one.

https://www.reef2reef.com/threads/medusa-worms-removal.642084/

 

[Jack_L]

As others have said could be Medusa worm as well but it looks like a cuke to
me. I’d keep either.

thanks