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[APD] Re: Aquatic-Plants Digest, Vol 8, Issue 29

Hydra, nasty little critters.  They can be death on fry.  I had then play
havoc with a guppy tank once.


On 14/4/04 11:41 AM, "Chuck H" <grendel at usit_net> wrote:
> > Revance wrote:
> >
> >> I have noticed very strange creatures in my aquariums... I am not sure
> >> where they could have originated from, but they probably moved from
> >> aquarium to aquarium because I moved some plants around. They look like
> >> tiny white anemones, they are about 3-4mm tall and appear to have a
> >> and 5 hairlike "tentacles".
> > ....
> >
> > Congratulations, you are now the owner of a hydra colony, a
> > freshwater member of the phylum Cnidaria.  They are related to
> > jellyfish, sea anemones, and corals.  I once had some green ones
> > whose color was due to symbiotic algae.  They're pretty common
> > hitchhikers and are generally harmless despite their stinging
> > tentacles, though I've heard tales of them snatching fry out of the
> > water.  They creep some people out, so if you want to kill them off,
> > anything that kills snails will work on them.
> >
> > _______________________________________________

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