Worms in my Sump

[Grue]

Went to do weekly water change Fond these. What are they? Do I need to kill them? http://www.captivereefing.com/vbpicg...?do=view&g=165
Grue

[Grue]

Think I figured out how to post a pic So Here goes

[AuntKaren]

I'm not sure of the name of those worms but they are filter feeders and no harm in your tank. BUT do I see aiptasia in there? Those you don't want. We had just a few in our sump and a couple monts later (now) we have them creeping into the Display tank. We can kill them in the display but haven't figured out how to get rid of em in the sump.

Can you get closer pictures of the stringy critters in the current pic?

[Grue]

had aiptasia Tried joe's Juice and stop aiptasia no sucess Put 10 pepperments in the tank (80) and 3 in the sump And i am happy to report I am aiptasia free. Those brown spots (Blownup) are dead worms

[Grue]

blew it up a bit hope you can see

[melev]

Those are spirorbid worms, probably. Normally they make a tight circle, but can grow more random/wilder like yours. Common filter feeders that live in calcified tubes.

[Grue]

Thanks all for the answers
Grue

[fivetowns]

Are the tubes hard on those worms? I have something similar but your worms seem to have a black streak down the middle. Never seen that before.

[graphixx]

they are a harmless colonial worm no worries