Originally Posted by hedge_fund
If you do get duckweed then get Giant Duckweed at the very least. Stay away from regular duckweed as it's the biggest pain to deal with.
Seconded! I had some arrive as a volunteer with some plants I ordered and it's taken over that tank. Nothing I do seems to be able to eradicate it. I hate working with that tank down, as that crap gets all over everything, including me!