So...what are these?

[Fish_Bone]

20 long planted, plants are from several sources. The tank does not have fish in it yet. Snails only...well not counting the white worms.

http://youtu.be/5JgYwob2d9Q

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[Fish_Bone]

oh its a good idea to mute the sound before watching...

 

[gmh]

Yuck. I'd be inclined to remove that mass of hair algae and the worms along with it.
I imagine most fish would see them as a tasty snack however.

 

[Fish_Bone]

If you thing that's yuck you should have seen it a few weeks ago...


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[FishFanMan]

Yeah, I hate worms. I'd freak out if I found that in my tank!

 

[Fish_Bone]

Well I have never had worms occur in any tank before this one.

So no one knows?

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[SnakeIce]

Simple answer a worm.

But when you get down to things that size there are quite a number of things that are similar but have small differences. And even if you catch those differences you would only have a rough identification, since there are lots of individual species.

 

[Glabe]

^ yup!

I figure if they are thriving with no fish in the tank, they're probably fish food instead of parasites.

 

[wesleydnunder]

Looking at how they're shaped and the way the body thins as they stretch, they look like a member of the tubifex family of worms; like the blackworms sold as fish food. If they are tubifex, they shouldn't pose a problem for fish.

Mark

 

[briggadane]

Appears to be free, live, fish food! What a find!