What the hell is this ????

[mainebait]

Seaworm- Bloodworm (Glycera di Branchiata) can only live in salt water (1.024 to 1.025 specific gravity). Fresh water will instantly kill this type of bloodworm.

 

[TankGirl]

I'm loving the scientific literature! Good work, Max!

 

[tiptoptank]

It looks like a sand worm. Like the ones you buy for fishing in the sea. It may be so sort of sand worm for fresh water. Try putting it on a towel and messing around with its head. If two very big pinchers come out to bite you then I would definaly say that it is a sand worm. THe only question I have it how is it living in a freshwater tank. Is your tank brackish?

 

[kukerdan]

Looks like a blood worm

 

[Fishingdood]

now I am paranoid to stick my hand in my tank for fear of somthing like that to come at me ! hehe

 

[mattrox]

Polychaete Worms.
The term means "many bristles". These are the extremely numerous marine bristleworms. Very few are found in freshwater.
None are shown in these galleries.

This is from http://www.micrographia.com/specbiol/helmint/annelhom/anne0100.htm


From the pic I am fairly sure Fruitbat is right. I thought that too.
Ineresting that it is in FW!

 

[Veneer]

I'd like one, but £1000?

As has been said before, the creatures are, in all likelihood, freshwater polychaetes (which occur [sparsely] across various isles of the Indo-Pacific, through a broad pan-tropical [and warm-temperate] belt of both New and Old World, to such outposts as the Caspian Sea, Lake Baikal, and New Zealand), thus accounting for the resemblance to a marine "bloodworm"; they likely came in as juveniles or cysts amongst your live plants.

 

[tiptoptank]

doea the worm have a bulbus head? I really want to know if it has those big sand worm pinchers. put it in a towel and poke it and prod it. Sometimes it takes awile. if he is a sand worm it is almost amazing how big the pinchers are. ANd, they hurt if you got a big worm.

 

[TomK2]

Damn ugly, whatever it is.