Weird creature inside my tank. Need Id. - The Planted Tank Forum
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post #1 of 17 (permalink) Old 03-18-2013, 10:48 AM Thread Starter
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Weird creature inside my tank. Need Id.

Found a weird creature inside my tank. Have no idea on what this is. My tank has cardinal tetras, few cherry shrimps and 2 gold chinese algae eaters.

Would appreciate if somebody can ID this creature and way to get rid of this.

Thanks.
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post #2 of 17 (permalink) Old 03-18-2013, 10:52 AM
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Dragonfly nymph. Get it out ASAP! It is predatory.

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post #3 of 17 (permalink) Old 03-18-2013, 11:16 AM
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What he said. Unfortunately, also you might have more than just the one. I'd scour your tank for any others and then do it again. They will eat any smaller animals vertebrates or invertebrates that they can get their jaws on.
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post #4 of 17 (permalink) Old 03-18-2013, 11:17 AM Thread Starter
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Thanks Sugardaddy. Mine was densely planted in the background and was lucky to catch that using tweezers. Threat taken out... at least for now.
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post #5 of 17 (permalink) Old 03-18-2013, 11:32 AM
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You probably have more than 1, keep a close eye out.
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post #6 of 17 (permalink) Old 03-18-2013, 01:49 PM
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If you have one you have more... I found 2 next think I know after tearing the tank down to check final count caught was 18

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post #7 of 17 (permalink) Old 03-18-2013, 01:53 PM
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Ya, its a dragonfly nymph. Found one of these once and didn't no what i was and a couple days later, it killed some of my fish.
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post #8 of 17 (permalink) Old 03-19-2013, 11:50 PM
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Weird creature inside my tank. Need Id.

This post just gives me the creeps! I feel as though it is some horrifying creature going to destroy everything!
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post #9 of 17 (permalink) Old 03-20-2013, 12:03 AM
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Get rid of that thing.. i found 2-3 in my tanks for a batch of plants i got last month.. mine were green but same diff.. they will attach your shrimp once they get big enough
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post #10 of 17 (permalink) Old 03-20-2013, 04:24 AM
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How the heck do they get in???

I use (fake) dragonfly nymphs for fly fishing

How I feel about non-planted aquariums.
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post #11 of 17 (permalink) Old 03-20-2013, 04:30 AM
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Quote:
Originally Posted by assasin6547 View Post
How the heck do they get in???

I use (fake) dragonfly nymphs for fly fishing
sometimes on plants....either commercially from large operations or like on other ppls plants who have issues already
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post #12 of 17 (permalink) Old 03-20-2013, 05:07 AM
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It's acturally a damselfly larvae. Close relative to the dragonfly. They are just as bad to have in a tank. Eat the same as dragonfly larvae. May have come in as an egg. If so, you have more.

Don't worry, because they're a larvae, they can't reproduce.
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post #13 of 17 (permalink) Old 03-20-2013, 04:53 PM Thread Starter
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Found another one and removed it. This one was little reddish, sitting on the moss and was little difficult to differentiate from the red shrimps.

At least this helped to weed out unwanted plants in my tank and clean the substrate a bit. Hope that's the end of it


Video that I found on youtube:

Last edited by desitetra; 03-20-2013 at 05:00 PM. Reason: added youtube video
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post #14 of 17 (permalink) Old 03-20-2013, 05:49 PM
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Quote:
Originally Posted by desitetra View Post
Found another one and removed it. This one was little reddish, sitting on the moss and was little difficult to differentiate from the red shrimps.
shivers* I think that means he got some of your red shrimps lol...
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post #15 of 17 (permalink) Old 03-20-2013, 07:49 PM
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Weird creature inside my tank. Need Id.

Quote:
Originally Posted by desitetra View Post
Found another one and removed it. This one was little reddish, sitting on the moss and was little difficult to differentiate from the red shrimps.

At least this helped to weed out unwanted plants in my tank and clean the substrate a bit. Hope that's the end of it


Video that I found on youtube: Damselfly larva devours a small fish - YouTube
That video was disturbing. I am naturally a little squeamish so I forced myself to watch it. But I was just so sickened the poor fry had to live while his body was devoured. I can't imagine the excruciating pain.

Nature has no limits on its beauty nor brutality. Thanks for the link.

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