[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: KillieTalk Digest V2 #337 Hydra and electricity
>the treatment of daphnia (deadly treatment) is the 12 volt battery with copper
>wires, with removal of the insulation from the portions which are placed in
>the tank, as this introduces copper ions into the water. It is simply a
>"copper treatment". Be careful. I have used it successfully with fish in the
>water, but lost fish if the wires were left in the water too long -- more than
>20-30 minutes. Simple and easy to use, but be careful of the time (and amount
>of copper ions released into the water).
>
> Yours, Harry Specht
Presumably the quantity of copper ions released will depend on the current
passed, which will depend on the conductivity of the water (any salts in
it?) and on the voltage of the battery.
Barry
__________________________________________________________________
Barry Cooper, Chair email: bjc3 at cornell_edu
Department of Biomedical Sciences Voice: (607)253-3336
Section of Pathology FAX: (607)253-3317
College of Veterinary Medicine
Cornell University
Ithaca, NY 14853
__________________________________________________________________
References: