RE: NANFA-- was Help with Unidentified fish;now anesthetizing fish

Dave Neely (
Thu, 14 Oct 1999 11:27:49 CDT

>>What is best way to anesthetize them?
>CO2 is the cheapest and it's in your medicine cabinet-- Alka Seltzer.

Clove oil works well, too... and is a bit easier to control the dosage than
CO2 if you don't want to whack the fish. There was a recent article in
Transactions of the American Fisheries Society on appropriate dosage, but I
can't remember it off the top of my head, and I don't have time to dig it up
right now. MS-222 is great, but $$.

A friend of mine has used benzocaine-containing anesthetics (ie., "Anbesol"-
also in your medicine cabinet) for putting down aquatic amphibians quickly-
it works really well for fish too.

Bob Jenkins put all of the methodology for his photo technique in a section
in Freshwater Fishes of VA- it's a great read. If you submerge a piece of
glass in your photo tank a couple of inches off the background, with the
fish lying on top of it, it gets rid of those nasty shadows.

Part of the "Joe Tomelleri" illustration process is to take a series of
photos of the non-anethesized fish very, very close up, both in a
"phoquaria" (small, v-shaped photo tank) and in air. It allows the artist to
observe highlights, shading, and colors that might otherwise be missed. Fins
are shot in front of a piece of white paper to get membrane colors.


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