Steffen
> Von: "Nick Zarlinga" <njz_at_clevelandmetroparks.com>
> Antworten an: nanfa_at_aquaria.net
> Datum: Tue, 25 Nov 2003 09:03:37 -0500
> An: <nanfa_at_aquaria.net>
> Betreff: RE: NANFA-- just to create paranoia ;)
>
> Lance, what you are describing is a very different thing. The symptoms that
> was just described are what humans show when they have contracted fish TB or
> Mycobacterium sp. It is a very slow growing bacteria that is a kind of
> tuberculosis. Only, it is not the same species that shows the classic
> effects of human tuberculosis. Fish TB in humans shows a reddish, inflamed
> sore, usually on the hand and eventually develops with a white pussy center
> that tends to form a crater. It is very hard and sensitive to the touch.
> It is easily curable, although you have to be on meds for a very long time
> to completely cure it. The next time you get a TB test from the doctor, you
> get a positive reading (for the rest of your life). X rays are the route to
> go after that. I have also heard it as "aquarist finger" and "flesh eating
> bacteria", but this is a bit harsh. It is a serious issue if you do
> contract it, but again, it is curable. Symptoms in fish are usually a
> hollow belly, no matter how much you feed, sores that just don't seem to go
> away, or spinal deformities. If one fish has it, it has to be assumed that
> the whole system has it and the whole system should be sterilized, including
> euthanizing the fish. If the fish are not euthanized, then they really
> should be *truly quarantined*, no mixing of equipment or supplies between
> tanks.
>
> Your symptoms seem to be, as mentioned, gas bubble disease. Somehow,
> nitrogen (from the air) is supersaturated in your water and it enters the
> fishs' blood stream through the gills and then comes out of solutionin the
> capillaries of the skin and fins. This is the same thing that scuba divers
> get when they get the "bends". It is extremely painful and the diver/fish
> needs to be recompressed to push the bubbles into solution in the blood
> stream for a very extended period of time until the excess nitrogen can be
> gasses off though the lungs/gills. In the aquarium industry, we usually
> take the fish in a cage and put it in a very deep tank (10 feet or deeper)
> to recompress. The question for you is how is the gas getting
> supersaturated in your water. A quick solution would be to have lots of
> airstones in the tank to gass off the excess nitrogen.
>
> How's that for an early morning brain teasing?
>
> Nick Zarlinga
> Aquarium Biologist
> Cleveland Metroparks Zoo
> 216.661.6500 ext 4485
>
>
>> <)> -----Original Message-----
>> <)> From: owner-nanfa_at_aquaria.net
>> <)> On Behalf
>> <)> Of Lance Merry
>> <)> Sent: Monday, November 24, 2003 8:25 PM
>> <)> To: nanfa_at_aquaria.net
>> <)> Subject: Re: NANFA-- just to create paranoia ;)
>> <)>
>> <)>
>> <)> I've had a problem like this with rock bass. (This
>> <)> is probably something different because no crater
>> <)> is formed.) If my tank has an algea bloom (not
>> <)> uncontrollable but to where everything is covered)
>> <)> my rock bass get these small bubbles on their skin
>> <)> and they start acting funny then they will quit
>> <)> eating. It will end up killing them if not removed
>> <)> to another tank. This might sound silly but I
>> <)> only get algea blooms in the tanks with rock
>> <)> bass...so much so that I don't keep a light on my
>> <)> rock bass tank.
>> <)>
>> <)> Lance Merry
>> <)> Decatur, IL
>> <)>
>> <)> Steffen Hellner <steffen_at_hellner.biz> wrote:
>> <)> If one encounters small bubbles on the skin, with
>> <)> evolving margins like a
>> <)> tiny vulcan crater and the flesh inside gets
>> <)> necrotic then he has joined the
>> <)> team. Think first who reported this was the late
>> <)> Prof. Schubert from the
>> <)> University of Hohenheim, Germany, the famous
>> <)> expert in fish diseases.
>> <)>
>> <)> I showed him my fingers and he said: bingo!
>> <)>
>> <)> But it4s not very serious and will come ang go and
>> <)> come and ...
>> <)>
>> <)> Steffen
>> <)> ---------------------------
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>> <)> American Native Fishes
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> /"Unless stated otherwise, comments made on this list do not necessarily
> / reflect the beliefs or goals of the North American Native Fishes
> / Association"
> / This is the discussion list of the North American Native Fishes Association
> / nanfa_at_aquaria.net. To subscribe, unsubscribe, or get help, send the word
> / subscribe, unsubscribe, or help in the body (not subject) of an email to
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> / nanfa-digest-request_at_aquaria.net instead.
> / For more information about NANFA, visit our web page, http://www.nanfa.org
/-----------------------------------------------------------------------------
/"Unless stated otherwise, comments made on this list do not necessarily
/ reflect the beliefs or goals of the North American Native Fishes
/ Association"
/ This is the discussion list of the North American Native Fishes Association
/ nanfa_at_aquaria.net. To subscribe, unsubscribe, or get help, send the word
/ subscribe, unsubscribe, or help in the body (not subject) of an email to
/ nanfa-request_at_aquaria.net. For a digest version, send the command to
/ nanfa-digest-request_at_aquaria.net instead.
/ For more information about NANFA, visit our web page, http://www.nanfa.org