Worm or Parasite?
 

Hi all, found this worm in the substrate tonight while cleaning out snails.
Can anyone identify it? Just wanted to make sure its not a parasite or something, I have never seen one in the tank before.
Tank Info:
-38 Gallon fresh water.
-Planted.
-Wood.
-Livebearers.
-BNP.
-Corry Cats.
-Neon Tetras.
-Fully cycled.
-Regular water changes for nitrates.

I would consider it a parasite. I've had 2 platys die with what looks like that hanging out of their gills. I got the parasites from the live plant tank at Petsmart.

Well if it is a parasite I need to identify it. Can humans (I) contract it sticking my hands in the tank, that is the million dollar question.

I just started reading about worms and parasites in tanks due to researching dwarf puffers - Do you have a bunch of them? I'm not an expert - I had no idea that this was possible until reading up this past week. *shudder*

Look up detritus worms
Aquarium, Pond Fish Parasites; Trematodes, Flatworms, Nematodes, Detritus, Anchor Worms

Nematodes are the ones that look similar but are usually inside the fish. I'm not sure how often they are free-swimming.

Wish I could be more help!

I don't know if yours is, I had my hands in my tank with the parasites and nothing. If you're going to treat them, check out API General Cure.