Can you ID these little worms in my tank?

[albionpo]

Hi everyone, I asked this question over in the reef forum but didn't get a response...I have LOTS of these teeny tiny little black worms in my tank...on all surfaces. They're about this big -- and round ( not flatworms ) don't seem to have a head or any thing. Just black worms...any ideas whether they're good or bad for the tank? I've got LR & LS so maybe they came in with that. What do flukes look like? Any help on this is appreciated...

 

[blutang]

A good way to see if they are good for your tank is to see if some of your fish are eating them......I would also take a sample to your LFS, and they should be able to identify them quickly.
Later!

 

[albionpo]

Thanks guys...I've never fed bloodworms in my tank, could they get in there some other way? I noticed that none of my fish have even tried to eat these things. They're everywhere in the tank...I can see them on all surfaces, they're definitely seperate, though. None of them tangled together or anything. They move slowly...when they move at all. I recently moved a couple of my fish into a hospital tank ( they were hiding, not eating, not looking too happy ) along with a piece of LR and now I have these little worms in the HT, too! It's really freaking me out, I can't find any good info on this anywhere. Do they still sound like bloodworms? The fish don't seem interested in them at all...Thanks for your help!!