It looks to be somewhere near <"https://beta.floranorthamerica.org/Drepanocladus_aduncus"> or <"https://dev.floranorthamerica.org/Leptodictyum_riparium">. Moss naming is problematic, you really need an <"idea of the leaf"> (microphyll) cell structure and ideally a capsule as well.Any ideas on what this moss could be? I found it attached to the wall of a local pond, both emersed and immersed.
I pick up any aquatic moss that I find. I'll be honest they mainly have dwindled away over time, possibly because the tanks are too warm and possibly because all our local streams are calcareous and the tanks are rainwater.I will enjoy seeing what it does.