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Re: [APD] Re: planaria toxic to shrimp

Over at AquaticQuotient.com, we have a recent thread about planaria. And there are photos of "planaria" attacking adult cherry shrimps. Hard to tell from the photos whether they are planaria, but the description is close.

Link: http://www.aquaticquotient.com/phpbb2/viewtopic.php?t=21496&highlight=planaria

The thread also has a few fishes listed that eat them.

I used to get planaria in my planted asian arowana tank. When I introduced 25 tiger barbs given by a friend, the planaria dissappeared overnight.

> From: "David Grim" <grim1214 at bellsouth_net>
> Date: Mon 03/01/2005 3:57 AM GMT+08:00
> To: <aquatic-plants at actwin_com>
> Subject: [APD] Re: planaria toxic to shrimp
> >
> > Message: 1
> > Date: Sat, 1 Jan 2005 12:48:48 EST
> > From: SunflwrgrlS at aol_com
> > Subject: [APD] Planaria toxic to shrimp?
> > To: aquatic-plants at actwin_com
> >
> > I found this surprising article while searching the web:
> > http://www.aquarticles.com/articles/management/Ali_Planaria_Worms.html
> >
> > Although my shrimp do not seem affected by the Planaria that has invaded
> > several months ago, I haven't had any baby shrimp in a few months
> (although I was
> > not wanting any more shrimp, either...).
> >
> > Do we have any scientists around that might be able to verify this or find
> > more info about this reported 'toxic' substance from Planaria?
> >
> A friend has a 125 gallon reef and had an infestation of the salt water,
> non-parasitic type of planaria and decided to get rid of them. The treatment
> (so he tells me) effectively raised the redox of the water very quickly,
> faster than the planaria could adapt, so they basically filled up like tiny
> balloons and ruptured. The danger to the corals (less to the fish) was the
> toxin released in the water after their deaths, and any resulting ammonia
> spike from their eventual decay. He had to siphon all the dead out that he
> could see and do several partial water changes, carbon/poly filter
> filtration,  afterwards. It worked, and he lost one piece of coral out of
> the entire 125 gallon reef.
> So the article makes sense, but in the years I've kept freshwater fish/plant
> tanks I've never heard of freshwater planaria being anything that less
> feeding/better tank hygiene couldn't take care of.
> Regards,
> Dave
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