My remedy for string algae is reduce
the nutrient load in the pond. Reduce
the fish numbers, clean out debris, keep
run off from entering the pond, increasing
higher order plants and shade if
possible.

As for winter... I'd worry about energy cost
to you. Do you have a garage or unheated
basement? Bringing the fish in and putting
them into a 150 gallon stock tank with an
air bubbler might work. If the water stays
nice and cold inside you wouldn't be feeding
and your filtering would not have to be really
high tech (but I would listen to the experts on
this!)

kathy :-)


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