Jack-
A few years ago, I put in a very small pond in my backyard. When it
was completed, I sent off to a pond supply company for some Duckweed.
I think it makes a pond look natural, and Koi and Gold Fish love it as
a treat.

I think I paid around $24.00 for the supply including the shipping.

The fish ate the Duckweed in short order, and I'm now without any.

Your picture makes me envious - I'm betting you could put an ad up on
Ebay, and become a Duckweed Baron.

Myrl Jeffcoat
http://www.myrljeffcoat.com