I got this potted aquarium plant (unmarked) from my local fish store a few weeks ago thinking it was Helanthium tenellum, but now that it's growing out a bit I'm not sure what it is.

Would anyone be able to help identify it?

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Here you can see some of the root, going straight down: enter image description here

I didn't plant this one deep enough in the substrate, so you can see its roots and stem: enter image description here

  • this is a hard question to answer,can you provide some sort of size of this plant,i have been looking in my books to try to id the plant and it looks like a type of vallisneria but i can not give you a positive id. Jan 28, 2020 at 7:50
  • @trondhansen Thanks for researching! The plants measure about 3 inches high, I took some more pictures that may be helpful! I will update my question with them
    – DCQ
    Jan 28, 2020 at 17:36

1 Answer 1


The top picture I think is Najas guadalupensis; I cannot find anything else it could be.

The plant in the last picture might be Blyxa aubertii, though I am not sure about this one.

It looks like you have two different types of plants in your tank, the N. guadalupensis have many other names like guppy grass and waternymph.

Plant identification is hard as a result of the natural variation of where they grow.

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