"Gary Woods" wrote in message
...
I'm a little concerned about a population explosion.... it's a
medium-largish earth pond, and I couldn't really control the numbers.
Don't know if you can get triploid/sterile koi as you can (must in NY)
with
Grass Carp.
Can I teach them abstinence?
==================
Buy older koi that are already sexed. In an open pond predators will help
control the koi population. If our ponds weren't netted we wouldn't have any
fish at all.
--
ZB....
Frugal ponding since 1995.
rec.ponder since late 1996.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
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