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Re: [Killietalk] RE: Acriflavine

Hello Joe,

Some of the more common trade names for Acriflavine are:
Euflavine, Trypaflavine, Panflavin, Flavine, Gonacrine.

For the chemically challenged, Acriflavine is a mixture of two derivatives of diaminoacridine. Commercial Acriflavine comes in different "flavors", i.e. salts of different acids, but hydrochloric acid is the most common. There is a "neutral", which is not neutral :-) and "acid" Acriflavine. Either one will work as a fungicide.

A good place to start is with a 2 parts-per-million concentration, i.e. the concentration of the final solution into which the egg is immersed. That is the concentration that gives a distinctly yellow TINGE to the solution.

After the egg eyes up, it is a good idea to change the egg to clean water, although I have seldom experienced any problems if the fry hatch in the Acriflavine solution. But why chance it?

Best,

George



On Jul 18, 2005, at 9:06 PM, Joe R. wrote:

What is some of the "different name" it is sold under? Here in Yuma
with only a PetSmart I'm having trouble finding anything with
Acraflavin in it.


Joe

--- Al Anderson <killiman at iquest_net> wrote:

Acraflavin is available at most tropical fish stores under
different names.
Kordon is the brand I use now.

-----Original Message-----
From: killietalk-bounces+killiman=iquest_net at aka.org
[mailto:killietalk-bounces+killiman=iquest_net at aka.org]On Behalf Of
Koran, David HQ02
Sent: Monday, July 18, 2005 8:37 AM
To: killietalk at aka_org
Subject: [Killietalk] RE: Acriflavin


I have been using acriflavin(e) for years as a fungus preventer
(actually a
fungusing retarding agent) every since I first purchased a small
bottle of
Bamaflavin from George Maier 35 years ago.  George had recommended
it and
that I figured must be the way to go.  When I ran out a few years
later I
tried methylene blue but it failed miserably.  Fortunately as a
chemistry
graduate student I ordered a small amount (5 or 25 grams) and made
up a
stock
solution (1 % or .01 M) in a liter of water and then diluted that 1
to 30
for
use.  I have been using the stuff for 30 years and still have about
a half
liter of stock solution left even after giving quarts of the
diluted
solution
away.  Maybe trying to use up my acriflavin is the reason I stayed
in the
hobby all these years!

If you have access to a club member who can purchase chemicals (not
an easy
thing to do off the street these days), 25 grams of acriflavin will
cost you
about $33 (Aldrich-Sigma) but you will prepare enough to keep the
AKA
"fungus
free" for a decade!

Acriflavin is a fluorescent flavinol dye.  In normal indoor
lighting
conditions your fluorescent lighting will cause the dye to absorb
light
energy and eventually destroy the molecules after about 4-7 days
(store the
acriflavin in a non-transparent dropping container).  Eggs will
take on a
slight yellow tinge after several hours but other than that I have
noticed
no
ill effects.

Dave Koran

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