I'm sorry but that picture almost looks like acorus, which is a terrestrial plant. I could be wrong and its either a sag subulata or a chain sword but the leaves look so spikey straight and thick it's hard to tell. Can you get a better picture? Use a tripod?
Aquascape? I'm a crypt farmer.
It's a fine line between fishing and standing on the shore looking like an idiot.
That IS an aquascape, it's titled "The Vacant Lot".