Tentacle take 2

[nanoman95]

Hey all

A while ago I noticed a tentacle coming out of the shady area of the live rock and haven’t seen it for ages. Today the tentacle is black and large and seems to be picking up left overs off the sand bed! Does anyone know what this could belong to? Sorry for the poor quality but I just can’t get it on pics and videos very well!

It’s similar to a Nass snail tube in terms of material but it retracts it and then puts it back out again constantly. Doesn’t like harsh light and all my Nas snails are accounted for so it isn’t one of those!

Send help!

 

[nanoman95]

Here’s the vid!

 

[Lavey29]

Some sponges produce tentacle like limbs

 

[Reefkeepers Archive]

Maybe a spaghetti worm?

Look anything like this?

 

[nanoman95]

Maybe a spaghetti worm?

Look anything like this?

Oooo no it doesn’t but that looks so cool! It’s black and chunky haha the closest thing it resembles is the Nas snails tube but it disappears into the rock haha

 

[prcardinal91]

My guess would be a eunice worm

 

[twentyleagues]

by the video id say brittle star. Not clear enough though, doesn't look worm to me.

 

[ISpeakForTheSeas]

The video's a bit blurry, but I'd guess a peanut worm (Sipunculan) - harmless/beneficial if so.

 

[nanoman95]

My guess would be a eunice worm

Oh no! That’s really bad right

 

[prcardinal91]

Oh no! That’s really bad right

If it is a eunice worm, it can get big and eat your livestock. I would try to get a better video or picture of it. When they are small I do not think they are necessarily a direct threat to anything, however, I do not have a ton of experience with them. Eunice worms tend to be more active at night. Use a red light to look at your tank when the lights are out to see if you can spot anything.