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RE: Killie Fry and velvet & Copper
Hi Tyrone,
I have never tried to introduce copper electrically from copper wires. I
purchase my copper treatments in liquid form. I used Organi-Cure which is a
tri-chealated (sp?) formula with formalin added. Copper wire can be an alloy
containing aluminum or some other metal. The electricity itself could be an
issue. It is hard to imagine that sufficient copper could have eroded from
the wire in 15 minutes to kill your fish, but not to effect the hydra.
Especially with only a 9 volt battery and no acid in solution.
In electroplating which is done in an acid bath if memory serves, moist of
the metal which comes off one electrode comes back out of solution on the
other electrode.
Despite my doubts about what actually killed your Nothos, we definitely
agree on the fact that copper is toxic and lethal, just to what degree or at
what point.
That is why I would not recommend it to newbies as a first choice for
treatment.
Best regards,
-RJ-
-----Original Message-----
From: owner-killietalk at aka_org [mailto:owner-killietalk at aka_org]On
Behalf Of Tyrone Genade
Sent: Monday, July 02, 2001 4:06 AM
To: killietalk at aka_org
Subject: RE: Killie Fry and velvet & Copper
On 29 Jun 2001, at 14:39, -RJ- wrote:
> I suspect that the truth about copper is that it can be used on Nothos
with
> velvet very effectively. But most of all VERY CAREFULLY! And preferably
with
> a copper test kit. The copper level has to be high enough to kill the
velvet
> but not high enough to kill the fish. This is not a treatment of choice
for
> beginners. Acriflavine is much safer and should be tried first where
> possible.
At one stage I had a nasty hydra infestation in my
foerschi tank. Out came the 9V battery and some copper
wires. Silly me forgot about the battery which was
pumming current through my tank... When I got back to
the tank (some 15 min past the official cutoff point)
the foerschi were already look bad. Some rapid water
changes to dilute the copper and a few hours and they
were all dead. Typical copper toxicity symptoms too:
gasping for air, lack of energy etc...
Incidently the hydra survived...
Copper is a killer! Even in trace amounts. I have heard
and seen the stories where copper medications have
killed nothos even after the tank was drained and washed
out before they were put in.
You rachovii are by far the exception. Personally I
doubt the accuracy of your test kit also. It more than
likely measures total copper (in the form of Copper II).
YOur water chemisty may be such that the copper was in a
hamrless complex etc...
Then again rachovii may just have an innate tollerance
for copper.
I would still be very careful though...
Regarding salt baths:
1) I think it would kill fry.
2) the concentration should be 35% mass:volume (this is
about sea water concentrations)
3) it is an excellent idea
Bye
Tyrone Genade
Southern African Killifish Society Coastal & Offshore Coordinator
AKA 08248
tyronegenade at yahoo_com
http://www.geocities.com/tyronegenade
*************************************************************
P450 Lab, Biochemistry Department
University of Stellenbosch, 7602, South Africa
Ph: +27-021-808-5876, fax: +27-021-808-5863
**********************************************************
In God I trust,
but in all others I must have irrefutable proof!
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