Oh. I don't know if they're the same thing. Shows what I know. LOL!
Well I think the trick to growing duckweed is to not give up. Cause, sure as shootin', that duckweed was NOT more then one little tiny leaf that may have been stuck to the water lettuce that's been in that tank for two months or longer. And now that I've taken inventory, there's duckweed in Logan's and Wraith's tank too. I wonder what made it start growing?
As soon as it gets warmer I'll drop some Frogbit in the mail for you and I'm sure some duckweed will hitchhike.