Eleocharis acicularis is found naturally growing in bogs, marshlands, vernal pools and other shallow waterways on North America and Europe. Eleocharis acicularis first gain popularity through Japanese Aquascaper Takashi Amano use of it as a grassy foreground plant for his Iwagumi and Nature Style layouts. Aquascapers were inspired by the wispy, soft, and natural feeling Eleocharis acicularis brings to planted aquarium.
Eleocharis acicularis looks very similar to other hairgrass species such as Eleocharis parvula. However, Eleocharis acicularis grows twice as tall (15 cm) than Eleocharis parvula (6 cm).
Eleocharis acicularis is commonly known as dwarf hairgrass or needle-spike rush.
Eleocharis acicularis forms a lush, grassy carpet when provided with high light and carbon dioxide. In those conditions, its rhizome will expand at a moderate growth and spread through runners. The blades of the plant will grow to a height of 6 inches (15 cm). The rhizome and roots will penetrate approximately ¼ inch deep and stretch through fine grain substrates.
In shallow waters or emersed growth, this plant will produce up to 15 oval flower at the tips of the stems.
Propagation is through splitting the runners of rhizomes.
Most aquascapers will place Eleocharis acicularis in the foreground or midground areas of the aquarium. This will form a grass like appearance to the aquascape which can either balance well with against rocks, or other carpet foreground plants such as Hemianthus callitrichoides, Glossostigma elatinoides, or Sagittaria subulata. Eleocharis acicularis can also be used as ascents to an aquascape, by strategically placing small patches of the plant among rock crevasses or other plants such as Riccia fluitians.
In nano aquascapers, Eleocharis acicularis has the potential to make a great background plant.
Photo Credit: George Farmer