I been doing a slow down of the water into my veggie filter when the temp starts to
mostly drop below 45 at night. actually, once the water temp gets below 55oF for
more than a day or two it is time to stop the waterfall and start preparing the pond
for winter, including putting up a cover and dropping in a heater. snag the hyacinth
and lettuce out when they start to look pathetic. start a bucket filter going now so
it will be able to take over bioload if your waterfall is part of the biofilter.
Ingrid

(WilsonKKW) wrote:

When is the best time to shut down pond?
And how?
I have 5000gallons with waterfall, 9 Koi, water lettuce,water hyacinth,lily
pads,parrots feather,water lily,
Thanks
Kathy...in Maryland



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