One of my ponds has ~250 koi fry and I see this behaivor randomly/
fairly frequently amoung the group. I always guessed that they were
spooked by my presence - producing a most extreme escape maneuver (?)
David

On Tue, 15 Feb 2005 21:06:55 -0000, "Oxymel of Squill"
wrote:

I have a fish doing wild corkscrew movements around the pond and floating
upside down. Does anyone know what this is or what I can do about it?
TIA
Jon