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Re: "tossing fish in ponds"
Tim Addis wrote:
> I have heard that the Nothobranchius ailment of a burrowing worm which, in
> its later stages burrows to the stomach wall & causes white lumps on the
> sides was originally started off by putting fish in outdoor ponds.
> I have known a few people get it & have had to strip down there fish houses
> as it is supposed to be transfered on the egg shell.
> Has anyone heard anything about this & is it true.
It sounds like a somewhat distorted description of *Glugea anomola*, an
intestinal and internal parasite of most any fish. It's nastier in the
Notho's because it passes in some form to the next generation in the damp
peat. It's a microsporidian (not a worm) and generally more common in
> I understand diluted formalin used to wash the eggs works.
It also keeps them from hatching, usually. It's a strong tanning agent and
toughens the chorion if used strong enough to do any good.
The best way, I have been told, is to collect the babies as soon as they
hatch and transfer them to another container with a minimum of the old
water. You may or may not break the cycle that way in one generation by
removing them before the cysts (?) hatch and infect the young. Quarantine
those babies until certain they are free of it.
It's a slow killer and so far is incurable. It rarely kills Nothos before
they mature and spawn. It's pretty common in sticklebacks, so one might use
caution about mixing them with other fish (e.g, in that pond).
Wright Huntley, Fremont CA, USA, 510 494-8679 huntleyone at home dot com
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