ID: Pics

[sts04c]

It appears to be an invert, looks similar to a squid, tentacles are retractable and banded with black stripes.
Harmful?
Thank you for any advice.

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[insane_reef_keeper]

Looks like a spaghetti worm. They are a good thing to a degree, they will eat left over fish food and waste.

 

[sts04c]

Thanks for the info/id, Insane.

Any other opinions/experiences 1st hand?
Thanks in advance.

 

[fish scales2]

They normally bed down into the sand bed and all you will see will be all the little strings coming out of it.

 

[insane_reef_keeper]

They will spread like crazy if you over feed, they will be in holes in your rock, and all over your sand bed. I had a few in my tank that started to increase in numbers, but I found that Yellow Watchmen Gobies will eat the heck out of them, at least mine was. Just watch how much you feed and they wont get out of control.

 

[sts04c]

Thank you, thats what I needed to know.

 

[insane_reef_keeper]

No problem.