Wife went shopping today at a nursery and came home with some pond plants... These things have duckweed all over them... Spent a better part of an hour cleaning them, but am still scared of putting them in pond... They were very expensive but are pretty mature plants...

What do I do?.... Take them back or do my best to raise them in tubs to make sure there is no duck weed left?...

Maybe I am just over thinking this.... AS NORMAL!!!