Gambusia vs Koi babies

Anybody else have a problem with koi babies after introducing gambusia?
Jim

Other than I never got any koi babies until the gambusia were killed off
one winter. Seems they don't do well if one circulates the water, even
slowly during the winter. I had baby koi the next spring growing up in the
filter, where the gambusia use to get as thick as in the pond. ~ jan

See my ponds and filter design:
http://users.owt.com/jjspond/

~Keep 'em Wet!~
Tri-Cities WA Zone 7a
To e-mail see website