Little creatures in filter !! - The Planted Tank Forum
 
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post #1 of 13 (permalink) Old 04-27-2008, 10:31 PM Thread Starter
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Little creatures in filter !!

Hi
I jave just cleaned (rinsed and changed white pad) on both my Eheim 2217's.
Hundreds of little creatures came out of the top, white filter:
Very small, around 2 mm long,
Light tan color,
Wiggling and clearly alive,
They look like little ants, at first site,

Has anyone every seen this?

Have 100 gal planted tank with fish.
No problems except can't get rid of blue/green algae and little snails that came in with the plants.
tks
raul
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post #2 of 13 (permalink) Old 04-27-2008, 10:33 PM
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pics?
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post #3 of 13 (permalink) Old 04-27-2008, 11:03 PM
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do you have shrimp?
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post #4 of 13 (permalink) Old 04-27-2008, 11:26 PM
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every time I clean filters I can always bet on there being hundreds of baby shrimp in there. They love it in there
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post #5 of 13 (permalink) Old 04-27-2008, 11:52 PM
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I highly suspect they are copepods/amphipods my friend.

Do they look like these?
http://www.micrographia.com/specbiol...o/cope0100.htm

They eat left over food and detritus (floating organics/poop), probably in your filter because that's where higher concentrations of detritus and left over food are.

There are good ones and bad ones, but for the majority in freshwater and marine aquaria they are the good ones.

Congrats! They are a sign of good health in your tank and I wouldn't distrub them because smaller ones are fish food.

These are their evil cousins in saltwater that can take apart tanks in no time. Dreaded isopods/amphipods at the end of the article.
http://www.reefkeeping.com/issues/2004-09/rs/index.php

I would honestly pay $ for FW copepods.

*Gives me the creeps just thinking about Isopods, saw a customers SW tank destroyed by them*

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post #6 of 13 (permalink) Old 04-27-2008, 11:59 PM
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Quote:
Originally Posted by SuperDragon View Post
I highly suspect they are copepods/amphipods my friend.

Do they look like these?
http://www.micrographia.com/specbiol...o/cope0100.htm

They eat left over food and detritus (floating organics/poop), probably in your filter because that's where higher concentrations of detritus and left over food are.

There are good ones and bad ones, but for the majority in freshwater and marine aquaria they are the good ones.

Congrats! They are a sign of good health in your tank and I wouldn't distrub them because smaller ones are fish food.

These are their evil cousins in saltwater that can take apart tanks in no time. Dreaded isopods/amphipods at the end of the article.
http://www.reefkeeping.com/issues/2004-09/rs/index.php

I would honestly pay $ for FW copepods.

*Gives me the creeps just thinking about Isopods, saw a customers SW tank destroyed by them*
Those marine bugs look like nightmares....
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post #7 of 13 (permalink) Old 04-28-2008, 01:26 AM
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well i have seen a bunch of stuff in my tanks, little water fleas, tiny white worms, and such. all were harmless so far, and so are those probably are too.

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post #8 of 13 (permalink) Old 04-28-2008, 01:33 AM
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i really enjoyed the section in SuperDragons link entitled "Man-Eating Amphipods and Other Oddities..."
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post #9 of 13 (permalink) Old 04-28-2008, 02:15 AM Thread Starter
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Thanks for the response.

Do not have any pictures but, I'll try taking some the next time I open the filter, in about 5 days.

Yes I have one or two ghost shrimps survivors.

I consider my tank very healthy. The only battles are with BBA BGA.

They didn't look like micrographia but more of an elongated body and don't recall long legs. But I'll really examine them next time and if I can't take pictures will try to draw them on paper.

tks
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post #10 of 13 (permalink) Old 04-28-2008, 05:30 AM
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Tan, elongated bodies, but look like ants? They have legs? Must say I'm clueless and curious too... If they didn't have legs I'd guess planaria...

Are the fish eating them?





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post #11 of 13 (permalink) Old 04-28-2008, 08:29 AM
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After thinking DEEP about your bugs that look like ants, tan in color...
Do they look like this?





If so, nothing to worry about, just another advanced copepod (hexapod)
From the order Collembola "Springtail" once though to be an insect, but not anymore. They can jump really far and are harmless.
http://en.wikipedia.org/wiki/Collembola

Eaten by Bettas, Newts, Young Frogs, fish (baby Corydoras Gourami's, Guppies, Dart frogs, White clouds, etc.)
http://www.livefoodcultures.com/springtails.html

Can't wait to find out what they are.
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post #12 of 13 (permalink) Old 04-28-2008, 01:49 PM Thread Starter
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SuperDragon:
Mine don't look like these, they much smaller, perhaps one fifth the volume or less. Approx length 2mm x width 1mm. but I was too quick to flush them down the sink. Sometime this week I'll open the filters and try to take pictures.
I do not see them in the tank at all but, they would be hard to spot.

tks
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post #13 of 13 (permalink) Old 04-28-2008, 08:22 PM
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Quote:
Originally Posted by rcalzadilla View Post
SuperDragon:
Mine don't look like these, they much smaller, perhaps one fifth the volume or less. Approx length 2mm x width 1mm. but I was too quick to flush them down the sink. Sometime this week I'll open the filters and try to take pictures.
I do not see them in the tank at all but, they would be hard to spot.

tks
Well, for what it's worth most copepods are 1-3mm.
The Springtails are also 1-3mm. The pics are just enlarged and the white ones are juvenile.

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