RE: NANFA-L-- Annoying malady

Bruce Stallsmith (
Tue, 13 Jun 2006 08:33:43 -0400

Immunologically, your description makes sense, Chip. Testosterone is a
strong immunosuppresant, and testosterone levels increase dramatically
during spawning season for both males and females in most fish species. In
that weakened state they may have become susceptible to infection. This
could explain why your other sunfish were unaffected.

--Bruce Stallsmith
along the sunny Tennessee
Huntsville, AL, US of A

>From: "Chip Rinehart" <>
>To: <>
>Subject: RE: NANFA-L-- Annoying malady
>Date: Tue, 13 Jun 2006 07:23:30 -0400
>With the white-faced stuff, there is nothing to scrape off. Its almost
>like the lose all pigment from their eyes forward. Funny that it affected
>the blackbandeds only in this tank and not the blackbandeds, bluespots,
>longears, or dollar sunfish that are in this system. Just out of
>curiosity, I put some blackbandeds from one of the other ponds into the 300
>gal tank that the malady occurred in and so far, two weeks later, nothing
>has developed. Maybe it was something that happened to certain ones after
>spawning. Geez, I guess that's another variable. I didn't notice this
>white-face until after I noticed that some of the BB's had nests.
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