Is Chain Sword Fully Aquatic? (E. tenellus)

[NB_Aquatics]

Just wondering if the chain sword (E. tenellus) is fully aquatic? I attached a picture, it is not fully submerged in the picture, but i have read it is.

 

[dundadundun]

i doubt it. i know many echinodorus sp. are marginals. dunno if all are, but seeing your results, i highly doubt it's an obligate aquatic.

is that where the flowers are coming from? if so, it's definitely a marginal.

 

[SubRosa]

It makes a lovely lawn in a terrarium.

 

[ROYWS3]

Despite the fact that it is a marginal, it grows quite well fully submersed indefinitely.