Huge critter!

[jy808]

Was feeding my clownfish and observing my live rock to see this big thing crawling out from under the rock! What is it?!! Id say it is about 8-9cm long.

 

[35ppt]

Common bristleworm.

 

[jy808]

Common bristleworm.

It's quite big, would it be advisable to leave it in there?

 

[vetteguy53081]

Last one i had at 13”, i pulled it with aquarium tongs and let it sail into Lake Michigan via the toilet

 

[xxkenny90xx]

Put it in the sump!

 

[Auquanut]

They are great detrivores. If you have that one, there are probably more. I personally don't worry too much about them. I have a melanaurus wrasse that keeps them under control in the display. I find one from time to time in the filter socks, but I never see them in the tank.