Re: [RML] camallanus

Chris Howe (c_howe at
Tue, 22 Jul 1997 10:01:56 +1000

Hi Meryl,
Where do you get your wrigglers from? Natural waters or small
containers. The wrigglers would presumably only be vectors for the
Camallanus if the wrigglers had some sort of contact with other hosts. We
feed quite a lot of wrigglers harvested from containers, and have not seen
this problem (touch wood). What about others who've reported this problem?
Chris Howe

At 08:23 AM 22/07/97 +1000, you wrote:
>G;day meryl
>It certainly sounds like Camallanus - and as you have seen from the list
>there are a number o drugs that seem to work. The problem is that
>information on this parasite is a bit sketchy, especially as far as
>up-to-date treatments goes.
>The problem also is that the worm is a live bearer and may have a 3 month
>maturation time in the host fish before it is obvious.I feel that an
>effective initial dose should kill both adults and larvae but evidence for
>& against this is lacking. Perhaps a follow-up dose a month or so later
>would be worthwhile.
>Also the problem of reinfestation needs attention - we don't know if live
>foods can be a culprit but your oservation adds more evidence that perhaps
>live foods ( e.g. tubifex & wrigglers, and perhaps live bloodworms?) and
>the introduction of other fish can be responsible.
>bhansen at
>> From: Meryl Jury <merylj at>
>> To: rainbowfish at
>> Subject: Re: [RML] camallanus
>> Date: Tuesday, 22 July 1997 7:26
>> Hi, can anyone describe the symptoms of this problem!
>> (We have had various fish show a worm problem with red worms hanging out
>> the anus and the worms have been alive because sometimes they would
>> and retreat inside the fish, we have treated the fish with drontal worm
>> tablets - meant for cats and the worms have dissappeared but I wonder if
>> only killed the adults and left the eggs or larve intact.)
>> When I say we treated the fish with drontal - I mean we put drontal
>> in the infected tank and removed the charcoal from the filter. After
>> days the tablets had dissolved so we started 10 per cent water changes
>> the next 10 days and the worms seemed to be cleared up. A few months
>> after feeding mosquito larve the problem reoccurred. I wonder if we
>> killed the parasite or if they were happily living inside the fish all
>> time!
>> Hopefully we have now cured this problem in our home tanks but we keep a
>> watch out for any re-occurance.
>> Meryl