"Smith" wrote in message
news:C3mzc.86$e%.81@newsfe2-win...
I'm in the UK and my pond has become covered in duck weed. Everything
seems
fine in the pond but I would like to get rid of it.

Any ideas?
snip

Koi and Goldfish love to eat Duckweed. It's like candy to them. In my pond,
I can't keep it alive. Last year, I was scooping it out of my pond by the
gallon, every day, just to keep up with it. This year, none came back, and
the batch I saved in the house, was mowed down by the Koi before it could
take ahold of the pond.

In my zone 6ish area of MD, the duckweed eventually dies back in mid summer,
drops seed and disapears.

BV.