Eleocharis acicularis: Aquarium Foreground Plants

The Eleocharis acicularis plant is also referred to as:

  • Needle spikerush
  • Least spikerush
  • Hairgrass Dwarf

Eleocharis acicularis: Quick facts

Popular names: Needle ledges, Needle spikerush, Least spikerush, Hairgrass Dwarf

Full botanical name:  Eleócharis aciculáris (L.) Roem. & Schult.

Level of difficulty: easy

Use: Middleground, nano aquarium, foreground group, foreground ground cover

Growth: medium

pH value: 5 – 7

Temperature tolerance: 4 – 27 ° C

Carbonate hardness: 0 – 14 ° dKH

Total water hardness: 0 – 30 ° dGH

Propagation:  Runners, division, separation of daughter plants

Can grow immersed? Yes

Eleocharis acicularis

Eleocharis acicularis: Shape and Color

The Eleocharis acicularis is hair-like, thin, with straight stalks that are colored medium green in the submerged form. The stalks are about 10-20 cm long.

It is not to be confused with the Eleocharis pusilla (as “E. parvula”). It is also colored lighter green when submerged under the same conditions. However, it grows to only 5 cm high and has curved stalks.

The leaves of this plant remind you of needles or grass due to their narrow and elongated shape, but they are by far not as rigid.

The color of the leaves is quite intense green and thus gives the aquarium the desired liveliness.

The Eleocharis acicularis ledge can sometimes have a slightly lighter shade than the needle ledge.

If the individual stalks of the plant become too long in the aquarium over time, they can be pruned without any problems.

The Eleocharis acicularis form roots so that – if there are no unfavorable disruptive factors – they only have to be planted, but not necessarily attached to the aquarium by other aids.

The needle ledge generally appreciates good lighting, a good supply of nutrients and water temperatures that are not too high in the aquarium, but is also more of an undemanding plant that can also be cared for by people who are just starting their first aquarium.

It should be noted, however, that the individual species can sometimes have slightly different requirements.

If you want to increase the needle ledges or dwarf needle ledges, you can do this by using the runners that this plant forms.

Eleocharis acicularis

Eleocharis acicularis: In the Aquarium

The Eleocharis acicularis is best planted in groups in the aquarium.

This has the advantage that over time the plants create a dense green carpet in the aquarium that looks very full and lively. Aquarium inhabitants can hide well between the individual stalks and thus find their necessary peace.

The needle ledge does not grow too fast, but it does grow steadily, so you should make sure that you trim it from time to time if it restricts the view of the aquarium too much.

It can also be used in the middle of the Aquarium forming green carpeting.

In the aquarium, the flowering of the Eleocharis acicularis can be controlled with the help of the water temperature and the lighting. During the flowering period, the needle ledge forms small brown spikes that bloom above the surface of the water. 

As a subsurface, the perennial prefers a normal, nutrient-rich pond or aquarium floor, with plenty of sun or optimal lighting.

How to plant Eleocharis acicularis

Eleocharis acicularis: Inherent benefit

The Eleocharis acicularis forms real dense carpeting on the Aquarium substrate. This in turn ensures that any algae in the Aquarium have far less space to grow. 

It therefore acts as protection against excessive algae growth, which is a great pleasure for every aquarist and pond owner. 

Additionally, the Eleocharis acicularis offers the Aquarium inhabitants perfect hiding places because they find enough space between the blades to hide. 

The plant not only makes the Aquarium beautiful, it also ensures that the fish feel comfortable and that the excessive algae growth is contained.

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