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Alternanthera reineckii 'Grün' ('Green')

Alternanthera reineckii 'Grün' ('Green')

Alternanthera reineckii 'Grün' ('Green'): aquatic plant of the family Amaranthaceae. Light: Medium to high.

Taxonomy
Class:Liliopsida
Order:Caryophyllales
Family:Amaranthaceae
Genus:Alternanthera
Species:Alternanthera reineckii 'Grün' ('Green')

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Check out Alternanthera reineckii 'Grün' ('Green') on Atlarium

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Water Temperature

4 - 30 °C

pH Value

5 - 7

Water type

Freshwater

Light

Medium - High

CO2

Low - High

Expected height

40 cm

Expected width

20 cm

KH

0 - 14 dKH

Species description

Alternanthera reineckii 'Grün' is native to the tropical and subtropical regions of South America, particularly within the Amazon basin, extending through Brazil, Paraguay, and Argentina. In the wild, this species typically colonizes muddy riverbanks, marshlands, and temporarily flooded soils, growing in both emersed and submerged states. Its natural habitat is characterized by soft, warm, and nutrient-rich waters where direct or partial sunlight stimulates vigorous growth and branching. Taxonomically, it belongs to the Amaranthaceae family and the genus Alternanthera. The cultivar 'Grün' (or 'Green') is a variant specifically selected for its predominantly green foliage, which stands out from the more common red and purple cultivars such as 'Rosaefolia' or 'Mini'.

Care, breeding and tankmates

It prefers soft to moderately hard water, with a KH range of 0 to 14 dKH and a slightly acidic to neutral pH (5.0-7.0). It is highly adaptable regarding temperature, tolerating a wide range from 4°C to 30°C, though the optimal range for aquarium keeping is between 22°C and 26°C. It is susceptible to green spot or thread algae if nutrients are imbalanced or if water flow is inadequate. The tender leaves can also be targeted by herbivorous fish or hungry shrimp; potassium deficiency is a common risk, showing as small pinholes in older leaves.

Geographic Origin and Distribution

This species originates from: Tropical and subtropical South America, particularly the Amazon basin (Brazil, Paraguay, Argentina)..

Origin

Amazon, Orinoco, and GuianasExtra-Amazon South AmericaSelective breeding and cultivars

Plant profile

Placement
Midground

Careful consideration of placement is vital for Alternanthera reineckii 'Grün' in any aquascape layout. Positioning it where it receives high lighting will yield the best visual results. Ensure there is enough space around it to accommodate its natural growth pattern without shading neighboring plants. Strategic placement will enhance the overall depth and aesthetic of the aquarium.

Botanical form
Stem

Botanically, Alternanthera reineckii 'Grün' exhibits a distinctive stem form that adds unique texture to the tank. Its structural characteristics make it a fascinating subject for dedicated aquatic botanists. The leaf morphology and stem structure are adapted to its specific environmental niche. Observing its natural form develop provides great satisfaction to the careful aquascaper.

Growth
Medium

The growth rate of Alternanthera reineckii 'Grün' is generally considered medium under optimal aquarium conditions. Providing the right balance of light and CO2 can slightly accelerate this pace. Aquarists should be prepared to manage its growth to maintain the desired layout shape. Consistent environmental parameters are key to stable and predictable development.

Substrate
High
Column fertilization
Recommended

Liquid column fertilization is highly beneficial for the sustained health of Alternanthera reineckii 'Grün'. Dosing a comprehensive liquid fertilizer ensures that leaves have direct access to essential minerals. It is recommended to divide the weekly dose into smaller daily additions for better absorption. Adjust the dosage based on the plant's visible response and overall biomass.

Root fertilization
None

Root fertilization plays a significant role in the overall vitality of Alternanthera reineckii 'Grün'. Inserting nutrient-rich root tabs directly into the substrate near its base promotes strong root systems. This is particularly important in mature setups where substrate nutrients may have depleted. A healthy root system anchors the plant securely and supports robust upper growth.

Trimming
Occasional

Regular trimming is required to maintain the desired shape and health of Alternanthera reineckii 'Grün'. Using sharp aquascaping scissors ensures clean cuts that heal quickly without inviting rot. Pruning also encourages denser regrowth and prevents lower portions from being overly shaded. Remove any decaying trimmed leaves promptly to maintain optimal water quality.

Propagation
Cuttings

Propagating Alternanthera reineckii 'Grün' is a rewarding process that allows aquarists to expand their collection. Depending on its stem nature, this is usually achieved by taking healthy cuttings or dividing the rhizome. Ensure that each new segment has sufficient healthy tissue to establish itself. Plant the new propagules carefully to encourage rapid rooting and new growth.

Sensitivity
Moderate

Alternanthera reineckii 'Grün' can be somewhat sensitive to sudden fluctuations in water parameters. It may exhibit signs of stress or melt if exposed to abrupt changes in temperature or pH. Algae treatments containing copper or glutaraldehyde should be used with extreme caution around this plant. Maintaining a stable, clean environment is the best defense against health issues.

Layout role
Midground, Background

In the aquascape, Alternanthera reineckii 'Grün' serves an important role by adding specific structural elements. It can be used to create focal points or to soften the transition between hardscape and open spaces. The plant's unique texture contrasts beautifully with both fine-leaved and broad-leaved neighbors. Thoughtful integration of this species greatly elevates the natural feel of the display.

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

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Variants and close relatives

Same atlas type, nearby scientific identity, genus, or family.

Alternanthera reineckii 'Mini'

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Last updated: 06/16/2026