On Mon, 22 Aug 2005 18:16:59 +0100, "Conrad" wrote:

Hello

I have a pond of about 18 X 12 feet with a max. depth of 3.5 feet. The water
is clear and there is lots of vegetation,
30-35 ghost koi, comets and shubunkins up to 12"
plus a load of small fish of various types from fry size to
3-4 inches - I would guess at about 60-80.
I have adequate filtration which incorporates a fountain at one end and a
waterfall at the other.
What's concerning me is that most of the comets and shubunkins and one or
two of the koi seem to spend all their time on the surface under the
waterfall ( they ignore the fountain). Other than gasping at the surface
they appear to be OK, there is no other unusual behaviour and they feed as
usual. Conrad

Are these your largest fish? If they are all the big ones, I'd agree with
the rest, add more O2 24/7.

If some of the larger fish are swimming around unaffected, the others may
have something wrong with their gills, damage from ammonia & chlorine as
mentioned, or gill parasites... i.e., gill flukes.

Regardless, I think we're all pretty much in agreement you need to remove
fish. Though the math claims you might have over 5,600 gallons rarely is it
actuate and you probably have more like 4500.... or room for all your adult
fish mentioned, with adequate filtration, imo. ~ jan


See my ponds and filter design:
www.jjspond.us

~Keep 'em Wet!~
Tri-Cities WA Zone 7a
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