What is this? Shoud I remove it?

[Kworker]

I just walked in from class and went to my tank to check things out, i saw this. Dunno what it is Has not moved since the 5 minutes I have been home.. Bottom bit of it is green.

 

[RadReef]

Its hard to tell from the pic, could be a type of planaria flatworm. But, they usually do not stretch out like that. Or maybe a nudibranch.

 

[Kworker]

Well, just went in to look. Turns out its a feather duster lol. I saw it out and I scared it back in.

 

[fishgeek12]

feather duster? Is it moving around? Kinda looks like a nudibranch....

 

[Kworker]

I saw it out, like a feather and everytime i got too close it would shoot back in. Except its gone now.

 

[Hyprviperx]

could be a baby sea cucumber, they have a similar looking crown at a glance plus theyre mobile

 

[Kworker]

Possible, ill keep my eyes open and research bit more. Thanks folks.

 

[BlueWaterTropicals]

Feather Dusters are worm that build a tube. They can also shed their crown too. I have also seen then free swimming just like the one pictured.

So my vote is Feather Duster, lol.

 

[SeahorseKeeper]

Neat, I haven't seen a feather duster without its tube.

 

[Kworker]

Yeah I have a bunch of them actually around the tank they're cool hoping they get nice and big.