Re: NANFA-- Mime-Version: 1.0

Bruce Stallsmith (
Wed, 29 Dec 1999 10:46:30 EST

My intial guess is that your tank at work might get more foot traffic which
disturbs the fish, and triggers a nervous aggression. My second guess is a
difference in lighting. A third thought is that heavier planting/objects in
the tank would slow down aggression. And now I feel like Dr. Ruth...

--Bruce Stallsmith
Huntsville, AL

> I am a novice, so go easy. I keep an aquarium at work with fish I
>recently collected. I have no field manuals, but I have tentatively
>identified some of the fish as warpaints, live-bearing killies, creek
>chubs, some shiners I can't narrow down, and an Alabama hogsucker. I have
>two other tanks at home with basically the same mix. Here's the problem.
>These fish are continually nipping the tailfins of each other. At first, it
>appeared that the killies were the aggressors, but now they're all doing it
>(except the sucker). This does not occur in my tanks at home. The only
>difference I can see is in the tanks, not the mix of fish. The tanks at
>home are all-glass with external filters. The one at work is one of those
>plastic jobs with the shaved corners that I picked up at a yard sale. It
>has an undergravel filter. Any clues?
> Thanks,
> Steven A. Ellis

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