Are these parasites?

[vertigo72]

I just had another small koi die on me. I picked him up in the skimmer and I saw lots of tiny worms, clearly visible with the naked eye. Are these parasites? Which ones? They dont look like anchor worms to me from what Ive seen or? :

[ame]

Sorry for all the dirt, its skimmer water, but you cant miss them.

 

[27goldfish]

Possible mosquito larva?

 

[fishin4cars]

Not anchor worms, I'm with 27Goldfish, what I see in the bucket looks to be mosquito larvae.

 

[vertigo72]

Oh no.. mosquito's lol. Well, thats good news I guess. This was another of my KSD affected fish that I didnt manage to catch and treat. Thats 3 out of 5 that died so far. While 0 out of 5 for the ones I treated.

Anyway, I also scraped and scoped the fish, 4 times, skin and gills, and I got to see one (I guess) parasite, but it doesnt look like anything I can find on the web. The closest match is gill flukes, but it looked quite different. It was very small (had the scope on 600x), long like shaped like a worm and it looked as if its neck split in to a Y and had 2 heads. Here is what I found on youtube being the closest match, but still different enough that Im pretty sure its something else:
[ame]

But since I really could find only one in several scrapes, Im not gonna assume its what killed it.