Worm or Centipede!

[vinccc2009]

I saw this thingy moving in between my sump last week thinking it is some sort of dirt.

Then today, I saw it moving with tiny legs!!

There are no way for me to catch it as it is between 2 glass of my sump.

Only can pic for all to help me to ID.

Definitely a pest! But how to kill it?

[vinccc2009]

Did a search myself...hopefully it is bristleworm.

"Bristleworms are blamed for everything negative that occurs in reef tanks, but they are actually very good clean up detrivores. Count on them to find excess food missed by your fish, and expect to see many of them at night with a flashlight. They are often found on decaying matter, and thus are blamed for the death of the [insert creature here] rather than praised for keeping the tank clean. Reef-safe!"

The pic looks quite similar to mine..

In addition, below link is a comprehensive readup on the good and bad guys in our tank

http://www.xtalworld.com/Aquarium/hitchfaq.htm

[iskay]

It is a bristle worm. harmless to my opinion. I have ones in my tank that are 5-6 inches long!

[cdckjn]

Don't touch it with bare hands as its bristles will poke into your fingers and gives out a itch that it quite itchy.

[Zoa guy]

zzzz.......its a bristle worm which wont kill anything. They're also a good cleanup...they frequetly hitch hike on liverocks.