Plant ID?

[Twistersmom]

I bought this at the fish store today. Think they called it some type of grass, but can't remember the name they gave.
The goldfish will probably have it all pulled up by the morning, but it felt strong enough to withstand their nibbling.
(its the tall grassy looking plant)

[rocker92]

probably dwarf hair grass.

[Twistersmom]

Its already over a foot tall, dwarf grass get that tall?

[rocker92]

hair grass?

[rocker92]

lol

[Twistersmom]

lol, maybe. Not much comes up on a google search for "aquarium hair grass"

[MrGoodbytes]

Looks like an Eleocharis species to me.

[247Plants]

Giant Hairgrass. Eleocharis montevidensis

[Twistersmom]

Thank you!
So far the goldfish have left it alone, if the plant does well, I might have to go back for more.

[Inka4040]

Those little knobbies on the end make me think it's some kind of dwarf equisetum or horsetail rush.

[Kashta]

Horsetail rush is segmented and this isn't. But there are several varieties of common rush (bog plant) that looks like a good match.

Species: Species Juncus effusus L. (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEF) – common rush

Variety Juncus effusus L. var. brunneus Engelm. (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFB) – lamp rush P (http://plants.usda.gov/java/profile?symbol=JUEFB)
Variety Juncus effusus L. var. conglomeratus (L.) Engelm. (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFC2) – common rush P (http://plants.usda.gov/java/profile?symbol=JUEFC2)
Variety Juncus effusus L. var. decipiens Buchenau (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFD) – lamp rush P (http://plants.usda.gov/java/profile?symbol=JUEFD)
Variety Juncus effusus L. var. effusus (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFE2) – common rush P (http://plants.usda.gov/java/profile?symbol=JUEFE2)
Variety Juncus effusus L. var. exiguus Fernald & Wiegand (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFE) – lamp rush P (http://plants.usda.gov/java/profile?symbol=JUEFE)
Variety Juncus effusus L. var. gracilis Hook. (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFG) – lamp rush P (http://plants.usda.gov/java/profile?symbol=JUEFG)
Variety Juncus effusus L. var. pacificus Fernald & Wiegand (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFP) – Pacific rush P (http://plants.usda.gov/java/profile?symbol=JUEFP)
Variety Juncus effusus L. var. pylaei (Laharpe) Fernald & Wiegand (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFP2) – common rush P (http://plants.usda.gov/java/profile?symbol=JUEFP2)
Variety Juncus effusus L. var. solutus Fernald & Wiegand (http://plants.usda.gov/java/ClassificationServlet?source=display&classid=JUEFS) – lamp rush P (http://plants.usda.gov/java/profile?symbol=JUEFS)

[Twistersmom]

I sent an email to the store, so maybe tomorrow I will know what they are calling it.
We will see who is right, you can keep on guessing...

[Twistersmom]

Looks like the giant hairgrass to me. eleocharis montevidensis

Thinking I should not have it completely under water?