Fungus gnats or nematodes or something else?

Sirtwistsalot

Well-Known Member
I've got these tiny wriggly worms in my DWC setup. Having trouble I.D.ing them. Not really possible for me to post a pic - as they are so small.
They're really small - but visible, hair thin, white/kinda seethru, no obvious head, varying from 1mm to 5mm, they curl up and wriggle around.
My first thought was fungus gnat larvae and I have been treating with bacillus thuringiensis for about a week, but they remain. I also have yellow sticky traps which have caught 4 tiny flies - possible gnats, but I never see any and 4 is all I have on my 2 sticky traps.
The plant itself is in recovery from a previous issue (offgassing I think), but it has recently been fixed (hopefully), there is new growth from top and bottom. So things were looking up 'till I noticed lots of these wrigglers (hundreds) which I think may be eating away at my roots (I have little bits of roots floating around in my tank too)

So anyone have any ideas or seen this before - maybe they are fungus gnat larvae? but maybe they could be nematodes - which I have no idea how to treat.
Did you ever get to the bottom of this?
 
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