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Old 04-08-2020, 11:09 PM   #1
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Detritus Worm or Planeria or ???

Can anyone guess what kind of Worm this is that's crawling on the back wall of my tank?

I am hoping it's too long to be planaria, and it seems to be round in shape.

Hopefully it's not a problem, I do suppose my 4 Assassin Snails may eat them.

http://www.playtenniswisconsin.com/Worm.html
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Old 04-09-2020, 12:38 AM   #2
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Planaria are flatworms and look flat while they slide along the glass. They have a arrow shape to the head.
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Old 04-13-2020, 12:31 PM   #3
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Yeah hard to tell from the picture but planaria have very distinctive head shape. Little worms are super common in shrimp tanks if there are no predators to go after them. If you see a lot it is probably time to cut back feeding a vac your substrate.
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Old 04-13-2020, 12:48 PM   #4
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The worm may actually do more good then harm. " if it's doing fine leave it be" that's what comes to mind here.
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Old 04-13-2020, 11:56 PM   #5
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I think planaria in particular can do some harm to shrimp but otherwise agreed, itís just part of a healthy tank ecosystem. You donít ever see them in fish containing tanks because they get eaten so they often surprise people in shrimp tanks! Itís only if the population is noticeably high that itís a sign of a problem.
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