"John H." wrote in message
. ..

If the duckweek gets to be to bothersome, why cant I just net it all out?
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You can! It's easy to remove.
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Koi-Lo.... frugal ponding since 1995...
Aquariums since 1952
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
Note: There are two Koi-Lo's on the Aquaria groups.
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