Pest ID please

[sanjay55]

I am not sure what pest causes it but it leaves this cottony long tube behind.
I brush it off & I comes back again, seems to irritate my corals & smother my coraline

 

[Labridaedicted]

Tough to tell from the pic, but the description sounds like some kind of tube worm. I would suspect it's in a hole and the tube runs out of it to give it access to a higher flow area.

Theyre generally fairly benign, but if you must kill it, a little superglue in the hole will do the trick.

 

[sanjay55]

They look too soft to be tube worms..more like transparent with some whitish stuff plus I don't see opening or feather like creature. Posting another picture

 

[sanjay55]

I know the ID after I caught one
It's a Spaghetti worm.

 

[EeyoreIsMySpiritAnimal]

I know the ID after I caught one
It's a Spaghetti worm.

Ugly little buggers, aren't they?? Kind of like snot with a turd attached to it, lol

 

[OrchidMiss]

I know the ID after I caught one
It's a Spaghetti worm.

I don't see anything here that looks like a spaghetti worm.
Most often, they have a red or orange body and tentacles.

Critter Identification: Spaghetti Worms – First Time Fish Keeper

So, you've got a worm with loads of thin tentacles poking out of your sand bed or rock work, chances are, it's a Spaghetti Worm.

firsttimemarinekeeper.com

These are spaghetti worms.

 

[EeyoreIsMySpiritAnimal]

I don't see anything here that looks like a spaghetti worm.
Most often, they have a red or orange body and tentacles.

Critter Identification: Spaghetti Worms – First Time Fish Keeper

So, you've got a worm with loads of thin tentacles poking out of your sand bed or rock work, chances are, it's a Spaghetti Worm.

firsttimemarinekeeper.com

These are spaghetti worms.

Actually, no, they are not. Those are hair worms. Yes, I know "everyone on the internet" calls them spaghetti, but spaghetti worms are terebellids and live in tubes they make out of sand and mucus, and do not normally leave the tubes. The only parts of the worm visible on the substrate surface are typically the white to slightly pinkish feeding tentacles elaborated from the head.

Hair worms are in the family Cirratulidae. Cirratulids do not live in tubes but are found living free in the sediments below the surface. They usually have reddish tentacles.

 

[EeyoreIsMySpiritAnimal]

Spaghetti worms removed from their sand tubes:

Hair worm:

@Sean Clark

 

[ScubaFish802]

Second pic makes me think some type of sponge

 

[EeyoreIsMySpiritAnimal]

Second pic makes me think some type of sponge

Lol, I promise it's a hair worm I pulled from my tank.

 

[ScubaFish802]

Lol, I promise it's a hair worm I pulled from my tank.

I’m referring to OPs pic of the translucent looking thing on the coralline

 

[sanjay55]

I’m referring to OPs pic of the translucent looking thing on the coralline

Yup, its the shell the worm makes with its mucus etc . I couldn't ID it either until i caught one along with the mucus like tube. Wherever they make their tubes it irritates the corals & coralline algae seems to disappear.