"Magwitch" wrote
My parents have 15 koi in what is little better than an old farm pond
they
all seem fine, some about 18* long, breed and they've been there for about
20 years. So long as there's enough vegetation to hide from the herons
tehy
shift for themselves. Are you sure all this equipment is really necessary?


The breeders keep them in mud ponds in Japan as they grow them up and the
show fish are often given a holiday in a mud pond to improve their colour,
green water has a similar effect. However, they are carp and therefore can
shift a lot of mud looking for food, in a mud pond you would be unlikely to
see them because of the cloudiness of the water caused by the fish, which
rather defeats the purpose. A UV will also help stop or control some
diseases.

None of it is strictly necessary to keep Koi but it is if you want to see a
clear pond too. :-)


--
Regards
Bob
In Runnymede, 17 miles West of London

--
Regards
Bob
In Runnymede, 17 miles West of London