Plant ID HELP?!?

[shrimpybuisness]

What are the name of these floating plants? ( not the duckweed ) I grabbed them when I went fishing on a local lake. They have grown A LOT and I like the look of them in my Shrimp Tank!
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Ill post a pic of the roots also.

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[Nils]

Dwarf Water Lettuce, you'll have tons of it in a week or two, it's quite invasive, so be careful.

Nils