wrote:

did you do any kind of physical on the dead fish? look at the gills, feel the
slime
coat? it is really impossible to determine what the problem is. you are in
California, which means your pond could be quite warm. flukes are more of a
problem
in warmer water. aeromonas and costia in cooler water (IIRC). in teh
waterfall
points towards a gill problem. bloated sounds like dropsy. ah well. Ingrid

joe wrote:
Had a Koi die yesterday. I noticed he spent a lot of time in the waterfall
and he did seem a bit bloated. At about 4:00 he ate with the other goldfish
(alas, the blue "herring", got the all the other Koi ). At 6:00 he was belly
up. I've checked my levels and all are way fine. None of the other fish seem
ill. Joe in San Diego

The slime coat seemed okay. I didn't notice anything odd about him except
the bloat. I've spent so much time lamenting the loss of Koi to the Heron, I
was just kind of taken aback at a disease. I had forgotten (having had
aquariums when I was younger) how susceptible fish are to every little bug
that comes by.

Joe



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