JMK, are you sure you have duckweed and not azolla? Duck weed is bright
shiny green, Azolla is dark dull green looks soft, like a fern, and turns
red in fall. I know koi or goldfish don't care for azolla.... or perhaps
your's are just well fed? ~ jan

On Sat, 17 Jul 2004 06:32:57 GMT, "Just Me \"Koi\"" wrote:

Anyone in Southern California in need of duck weed can have ALL they want
for free! Same for pennyworth, parrot's feather, oxygenating grasses, and
of course many other plants too many to name.

(Do you know where your water quality is?)