Need an id on this critter

[Dahas]

I have a 29 gallon nano set up for almost 6 months now. I have 2 clown fish a royal gramma and a cardinalfish. A couple lps coral as well. Ive been noticing that the favias are fading and starting to expose skeleton. My nutrients have been stable for a while now
No3- 8
Alk- 8.2
Po4- .12
Cal- 440
Mag- 1520

as i was doing my weekly water change i noticed something moving around near one of the zoas. Istarted to move the water around with a turkey baster and ended up sucking up this critter. Im still new to the hobby and not the best at identifying hitchhikers. Please help.

i took it out amd put it in a tupperware top with some tank water and its still moving around

 

[NashobaTek]

Nudibranch of some kind

 

[Dahas]

Nudibranch of some kind

Are those good or bad?

 

[NashobaTek]

Depends on the type, I don't know what type that one is. But, you could Google nudibranch and go from there, unless someone else here knows what type it is.

 

[Ryan Satow]

Nudi probably bad

 

[Mr_Knightley]

Not a nudibranch, very clearly a spaghetti worm. Harmless CUC and good biodiversity, reef safe.

 

[Cell]

Just don't let it get a hold of you!

 

[vetteguy53081]

+1 on Spagetti and harmless and their tentacles are not meant to catch live prey. They feed on detritus, andleftover bits of all sorts of small dead organisms

 

[Dahas]

Not a nudibranch, very clearly a spaghetti worm. Harmless CUC and good biodiversity, reef safe.

Where do they come from?

 

[Mr_Knightley]

Where do they come from?

They're found in almost every ocean, I believe there to even be some arctic species. They live in the sand and rocks, most of the time.