The Planted Tank Forum - View Single Post - What is this gross worm?
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Old 11-11-2012, 04:00 AM   #2
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If each end can suck and stay attached to something, sort of like an inch worm, then it's a leech.

If it's red and has setae(hairs) like the marine polycheates, well, I've had them up to about 4-5" long myself, not sure what those are.

Looks more like a leech to me, Hirudenia.
Tom Barr
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