Little worm looking thing

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petermanmitch

Aquarium Advice Newbie
Joined
Jan 17, 2015
Messages
9
I was doing a water change today and noticed these swimming little worm things. Any idea on what they are. I have a 55 gallon African cichlid tank. ImageUploadedByAquarium Advice1424206298.955461.jpg


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Didn't know if they were or not, figured it was a start


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Where do those come from?

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Where do those come from?

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Probably from plants, fish, decor (from an existing tank).
In my planted tank I used to see them in the substrate and occasionally in the open water. Fish would eat them. One day I saw fish poop "move". Turns out that the worms were feeding on the poop and turning it into even smaller poop.


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