PlantFreshwaterIntermediate
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Eleocharis sp. "Xingu"
Eleocharis sp. "Xingu"
Eleocharis sp. 'Xingu': a medium-growing aquatic plant for midground or background. Ideal for creating grassy backgrounds and fine textures in aquascaping.
- Taxonomy
- Class:LiliopsidaOrder:PoalesFamily:CyperaceaeGenus:EleocharisSpecies:Eleocharis sp. "Xingu"
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Water Temperature
15 - 30 °C
pH Value
5 - 7
Water type
Freshwater
Light
Medium - High
CO2
Medium - High
Expected height
55 cm
GH
0 - 20 dGH
KH
0 - 14 dKH
Species description
Geographical Origin and Habitat: This species originates from the Rio Xingu basin in Brazil, a major southern tributary of the Amazon River known for its flowing waters and sediment-rich substrates. It grows primarily along riverbanks in transitional zones where it can be partially or fully submerged depending on the season. The presence of moderate currents and the seasonal variation of the water level shape its natural life cycle.
Taxonomy & Genetics: It belongs to the Cyperaceae family and the genus Eleocharis. It is a species that has not yet been fully described taxonomically, temporarily designated with the name of its location of origin to distinguish it from other Eleocharis variants. Its genetic structure is closely related to other needle-stemmed marsh plants.
Physical Structure: It features a slender structure characterized by vertical, thread-like stems growing from a creeping rhizome. It can reach a considerable height of about 55 cm, making it suitable as a background or midground plant in large aquariums. Its dense network of rhizomes allows the plant to anchor itself firmly and colonize the substrate quickly.
Color & Texture: The color of the stems is a bright light green, which creates a fresh contrast with dark driftwood and stones. The fine, needle-like texture of the leaves gives the aquascape a light, floating appearance in the water current, ideal for contrasting with broad-leaved plants.
Care, breeding and tankmates
Lighting & CO2: Requires medium to high lighting to maintain vigorous and dense growth. CO2 injection is highly recommended to support the growth rate and prevent yellowing of the stem tips.
Nutrition & Substrate: Although the
Water Chemistry: Prefers soft to moderately hard water, with a slightly acidic to neutral pH (5.0-7.0) and a temperature range between 15 and 30 °C. It adapts well to different conditions if kept stable.
Space Management & Placement: Excellent for the midground or background. Given its height, it should be positioned in dense groups to create a natural grass forest effect.
Pruning: Pruning should be carried out by trimming the stems horizontally to the desired height. This stimulates the plant to produce new side shoots from the rhizome, making the clump bushier.
Risks & Diseases: The main risk is the development of filamentous algae among its thin stems if nutrient balance and CO2 are not optimal. Good water circulation helps prevent this problem.
Geographic Origin and Distribution
This species originates from the Rio Xingu basin in Brazil, a major southern tributary of the Amazon River known for its flowing waters and sediment-rich substrates. It grows primarily along riverbanks in transitional zones where it can be partially or fully submerged depending on the season. The presence of moderate currents and the seasonal variation of the water level shape its natural life cycle.
Origin
Amazon, Orinoco, and Guianas
Plant profile
- Placement
- Midground
- Because of its potential to reach the water surface, it is best placed in the background of the aquarium. It can be planted in dense clusters to hide aquarium equipment such as heaters or filter intakes. In taller aquariums, it creates a striking vertical accent. It should be given enough space so it does not overshadow shorter foreground species.
- Botanical form
- Rhizome
- Eleocharis sp. 'Xingu' features long, elegant stems or leaves that grow vertically towards the light source. It can form dense thickets that provide excellent hiding spots for fish and fry. The leaves are typically bright green, adding a vibrant splash of color. Its structure is quite flexible, allowing it to sway beautifully in strong water currents.
- Growth
- Medium
- This plant exhibits a rapid growth rate, often reaching the water surface within a matter of weeks. The growth can be accelerated even further with intense lighting and CO2. Its fast growth makes it an excellent candidate for newly set up tanks to combat algae. Frequent trimming will be required to keep it from taking over the tank.
- Substrate
- High
- Eleocharis sp. "Xingu" is a demanding hairgrass variant that needs a highly fertile and fine-textured substrate to thrive in the aquarium. Its delicate runners propagate best through soft aqua soils, where its fine roots can effortlessly navigate and anchor new plantlets. To support a healthy root network, a substrate layer of roughly 4-5 centimeters is advised. Substrate richness directly dictates the speed and density of its growth, making root-level nutrient availability far more critical than water column fertilization alone.
- Column fertilization
- Recommended
- Liquid fertilization is very effective for this species, as it readily absorbs nutrients through its leaves. A balanced liquid fertilizer containing both macros and trace elements should be dosed regularly. Potassium and iron are particularly important to maintain strong stems and vibrant leaf color. Without sufficient water column nutrients, lower leaves may begin to degrade.
- Root fertilization
- None
- While it draws heavily from the water column, a nutrient-rich substrate will produce the most robust specimens. Root tabs placed near the base can provide a secondary nutrient source and anchor the plant securely. A good substrate helps prevent the stems from rotting at the base. However, it can still grow reasonably well in inert substrates with adequate liquid dosing.
- Trimming
- Occasional
- Regular pruning is necessary to manage its height and encourage lateral branching. You can simply cut the upper portion of the plant and replant the healthy tops to increase the density of the group. If the plant reaches the surface, it may bend and shade other plants, so timely trimming is crucial. Discard any old or decaying lower stems during maintenance.
- Propagation
- Cuttings
- Propagation is straightforward and usually achieved through cuttings or division, depending on its specific morphology. If it produces runners or side shoots, these can be separated once they have developed roots. Replanting top cuttings is the easiest way to multiply stem-like growth. It is a highly prolific plant under the right conditions.
- Sensitivity
- Moderate
- It is generally a very resilient plant, adaptable to a wide range of water parameters. However, sudden changes in water chemistry or temperature can sometimes cause melting. It requires adequate light reaching the lower portions; otherwise, it may drop its bottom leaves. It is mostly unaffected by typical aquarium medications.
- Layout role
- Midground, Background
- This plant excels as a background filler, providing a tall, green curtain that adds depth and volume. It contrasts well with red plants or broad-leaved species in the midground. Its vertical lines can help draw the eye upwards, enhancing the sense of scale in the aquascape. It is also highly useful in breeding tanks for fish that require dense cover.
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
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