"MikeB" wrote in message
...
Hi,

Can anyone tell me what the weed is that is thriving in my pond?

The weed is green and floats freely on the surface of the pond. As far as
I can tell, the leaves are oval (around 3-4mm long and 2-3 mm wide). They
have a look which I think is reminiscent of the leaves of watercress but
they have no stem.

I've seen this weed on covering the surface of canals in the UK and as a
child, I seem to remember that we called it "Jinny Greenteeth"
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Could it be common duckweed? It doesn't grow in my ponds because my
goldfish and koi eat every speck of it. I do see it grow in farm stock
ponds though. The frilly edged type is not eaten by my fish.
--
Koi-Lo....
Frugal ponding since 1995.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
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