Help with floating plant plant ID

[somethingclever]

My wife and I took our kids to the New England Aquarium last week and I saw this electric eel tank that really inspired me. My son stared at it for 5+ minutes.  I may try and recreate this look (without the eel😁) in a 20 long. The floating plant was really interesting. I heard another visitor call it giant duckweed, but it doesn’t seem to match a google search. Is it Brazilian pennywort?

[Ninjoma]

 It looks like Brazilian pennywort or maybe Nymphoides hydrophylla 'Taiwan' to me.

[JoeQ]

It looks to be some variation of pennywort but IMO its too small & compact to be the Brazilian variety.

Edited April 26 by JoeQ

[JoeQ]

I revise my initial thoughts after seeing this video, maybe the pennywort is small because its shading itself?

 

[Martin]

I have a good amount of Brazilian Pennywort in my tanks.  The photo just doesn't look like BPW IMO.  The stems are thicker (think bean sprouts) and the leaves don't grow that densely packed together either.  It is a lovely plant in the photo.  Please let us know if you figure it out!

Edited May 9 by Martin

[somethingclever]

Thanks for all the responses. I wish I had taken a better picture. I’m taking my time making changes to my aquariums since I’m still learning so much. I liked my duckweed but there are just too many little pieces.