what is this parasite?(pics) - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 09-30-2008, 04:18 PM Thread Starter
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Question what is this parasite?(pics)

i was siphoning my 10 gal rcs tanks gravel and was about to dump the bucket of water i just siphond down the toilet and i saw this swerming thing in the bucket so i took it out with a net and took pics of it.i took one of these out of the same tank before from under a rock.....what is it and can it hurt my rcs's if theres any more in there?thanks

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post #2 of 14 (permalink) Old 09-30-2008, 05:24 PM
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That's a nymph of some sort (e.g. dragonfly). Pull as many as you can find out. They'll slowly consume your shrimps and any fish you may have in there.

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post #3 of 14 (permalink) Old 09-30-2008, 05:27 PM Thread Starter
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how many do you think there could be in there?
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post #4 of 14 (permalink) Old 09-30-2008, 05:41 PM
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cool. I'd try putting them in their own tank.
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post #5 of 14 (permalink) Old 09-30-2008, 05:46 PM
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Totally uncool for shrimp and small fish.

Get them out if you are able. Search damselfly or dragonfly larvae on this site and others to learn more but they are not a good critter (if you like your fish and inverts).
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post #6 of 14 (permalink) Old 09-30-2008, 06:07 PM Thread Starter
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ya i just tore up my tank a little to see if i could find anymore but i didnt hopefuly there are no more.i have been missing some female rcs's thats where they probably went the df larve got them
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post #7 of 14 (permalink) Old 09-30-2008, 07:05 PM
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I had a complete Crystal Red population decimated by a similar larvae. When you think you've eradicated the pest, another pops up.

Did you just purchase some plants?


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post #8 of 14 (permalink) Old 09-30-2008, 09:35 PM Thread Starter
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a while ago i got some water lettuce at a nusery thats where i probably got them
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post #9 of 14 (permalink) Old 09-30-2008, 09:47 PM
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I would try putting them in their own tank also. They would be a cool and completely unique specimen to study. Feed em feeder fish and such until they get to their final stage and fly away.

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post #10 of 14 (permalink) Old 10-01-2008, 02:54 AM
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Originally Posted by MikeP_123 View Post
I would try putting them in their own tank also. They would be a cool and completely unique specimen to study. Feed em feeder fish and such until they get to their final stage and fly away.
I can see it now...a whole room full of dragonflies...growing and flying from the surface and just filling a room...
My dogs would go nuts!!!


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post #11 of 14 (permalink) Old 10-01-2008, 03:00 AM
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Doesnt it take a really long time for them to fully mature?

-Chris

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post #12 of 14 (permalink) Old 10-01-2008, 03:17 AM
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I've read that they can be in your tank for 2 years!

Just keeping on keeping on....


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post #13 of 14 (permalink) Old 10-01-2008, 01:44 PM
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That looks like a damselfly larvae. They can take from anywhere between 1-5 years to mature, but in a warm tropical tank setting, probably just 1 year.

To tell the diff... quite easy, here are some pics
Dragonfly:
http://fresc.usgs.gov/news/images/2003_3b.jpg

Damselfly:
http://www.snh.org.uk/publications/o...0(c)S.Cham.jpg



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post #14 of 14 (permalink) Old 10-01-2008, 02:44 PM
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It's most likely a damselfly larva, very hungry and eats all animals. Oddly enough I was trying to culture freshwater plankton. I had one of these hatch in the tank. I added 2 tiny snails to produce infusoria. Since there was no other food for it to eat, it ate the snails!

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