Came across this article. Wish I had known when I was suffering from the duckweed plague.
newatlas.com
From the pond to your plate – duckweed approved as a vegetable in Europe
When most people think of duckweed, they likely picture an unappealing green film growing across the surface of a stinky, stagnant slough. The protein-rich plant may soon be on your plate, however, as it's been approved for human consumption in Europe.
newatlas.com
