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Discussion Starter · #1 ·
I found 2 of these in my shrimp tank and sucked them up since I didn't know if they were good or bad. Anyone know what these things are? they have 6 legs and they swim around by wiggly around like a worm. Creepy looking!

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Damsel fly nymph / larvae. Native species more than likely. To the best of my knowledge they are not carnivorous like dragonfly larvae, damsel fly nymphs are herbivorous - mostly algae. My guess is you got water / infusium from an out-of-door source, like pond. If that is the case put it in the water source you got it from.

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Discussion Starter · #3 ·
Thanks! I took some duckweed from my outdoor pond and put it in my tank one time.... that's probably where it came from! Good thing they're harmless.
 

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I won't trust them though with baby shrimp ... that may be too close to their natural food
 

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Quite sure that damsel fly larvae are shrimp killers. I'd stomp that little fella. You can see them in action on YouTube, they're apparently ambush predators.


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