RE: NANFA-L-- Preserves...

Subject: RE: NANFA-L-- Preserves...
From: Peter Unmack (peter.lists at)
Date: Sun Aug 08 2004 - 11:20:10 CDT

On Sun, 8 Aug 2004, Bruce Stallsmith wrote:

> The best fish anesthetic/euthanizer is MS-222, marketed under several
> commercial names. It's similar to novocaine, and comes as a fine white
> powder. Don't take it in powder form with you on collecting trips,
> especially to other countries; it looks very much like cocaine to police...
> But it works great, I use it-in-triple strength to put down shiners I've
> been collecting. It works within 5 minutes. An alternative is clove oil, at
> several drops per liter.

Actually, I don't agree with Bruce that ms222 is the "best." ms222 is
rather expensive (about a $ a gram I think). I bought my ~50ml bottle of
clove oil in 1997 for about $15 and it is still going and has probably
killed 30-40,000 fishes. It works fast and fish do recover very well from
it (if you want to just knock them out). It works best if you have some
ethanol (I guess isopropanol would work too) to dissolve it in first
before adding it to water. I add about 1-2 drops to a liter and that
seems to kill fish pretty good for me.

Peter Unmack
Salt River, Lower Colorado Basin, AZ
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: Wed Sep 29 2004 - 12:24:17 CDT