Is this Helanthium or Vallisneria?

[Disaronno]

Hello!

Flowgrow is a wonderful database but I'm having trouble confirming this plant. I'm leaning towards Vallisneria nana but I have not ruled out Helanthium bolivianum "Angustifolius" because I cannot find pictures of the leaf structure of that. The ends of the leaves are pointed and narrow so I do not think it's Vallisneria spiralis or natans.

DSC0637

• Disaronno
• 12 November 2018

DSC0614

• Disaronno
• 12 November 2018

Also for that chain sword, I'm thinking it's Helanthium sp. "Longifolius" but I'm not sure if it could be something else.

IMG 20181020 181103

• Disaronno
• 12 November 2018

 

[Tefe]

I realy believe, its a Valisneria. Hematium bolivianum has much more smaller and lighter leaves..