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post #1 of 9 (permalink) Old 04-19-2013, 02:19 PM Thread Starter
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Hydra

Well, I recently decided to change my substrate to some fluorite black sand. About a week and a half later, I found hyrdra in my tank! I spot treated with some fenbendazole and they have already died! I also found a few planaria but they seem to be a bit more resistant to the treatment. Hopefully, they will all die in a few days. It just seems strange that a substrate change caused these creatures to popup.





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post #2 of 9 (permalink) Old 04-19-2013, 02:22 PM
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Very cool creatures! Usually you get them with new plants, or when feeding life food from ponds. I remember having some in a smaller tank, and went the mechanical route - just removed them whenever I saw one attached to a plant or the glass. After a short while they were gone.


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post #3 of 9 (permalink) Old 04-19-2013, 02:23 PM
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Hydra

Fenbendazole will only kill hydra but not planaria
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post #4 of 9 (permalink) Old 04-19-2013, 03:14 PM Thread Starter
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Very cool creatures! Usually you get them with new plants, or when feeding life food from ponds. I remember having some in a smaller tank, and went the mechanical route - just removed them whenever I saw one attached to a plant or the glass. After a short while they were gone.
No new plants or live food! Like I said, very weird.
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post #5 of 9 (permalink) Old 04-19-2013, 03:26 PM
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I still find it odd that some invertebrates are welcome and even coerced to reproduce, while others are exterminated. It's analogous to a similar debate I often have with my wife - what constitutes a weed? Many "weeds" that she pulls from her garden and flower beds are just as aesthetically pleasing as the "non-weeds."

If anyone else has a hydra outbreak, bag some up and ship them my way.... I find them extremely interesting.
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post #6 of 9 (permalink) Old 04-19-2013, 03:55 PM
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Indy, weeds are simply plants not welcome in an area that has been set aside for other fauna.

Same as in an aquarium. Since hydra are known to kill and eat shrimp, they are not welcome in a specif area that has been set aside.

Ants and other bugs are not welcome in my home either.


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My thinking has been invert-ed!

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post #7 of 9 (permalink) Old 04-19-2013, 04:05 PM
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hydras are totally cool looking. But they are not welcome in my shrimp tanks =<..
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post #8 of 9 (permalink) Old 04-19-2013, 04:21 PM
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If they don't have a food source they'll eventually die out. I had hydra the last time my tank was set up and they went away on their own.

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post #9 of 9 (permalink) Old 04-19-2013, 04:52 PM
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Quote:
Originally Posted by Indychus View Post
I still find it odd that some invertebrates are welcome and even coerced to reproduce, while others are exterminated. It's analogous to a similar debate I often have with my wife - what constitutes a weed? Many "weeds" that she pulls from her garden and flower beds are just as aesthetically pleasing as the "non-weeds."

If anyone else has a hydra outbreak, bag some up and ship them my way.... I find them extremely interesting.
I'm dealing with some right now. Not sure how well they'd ship in a bag but I could try....


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