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Echinodorus 'Rubin Narrow Leaf'

Echinodorus 'Rubin Narrow Leaf'

Echinodorus 'Rubin Narrow Leaf' is a majestic background variety featuring long ruby-red lanceolate leaves and a slow growth rate, ideal as a focal point.

Taxonomy
Class:Liliopsida
Order:Alismatales
Family:Alismataceae
Genus:Echinodorus
Species:Echinodorus 'Rubin Narrow Leaf'

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Water Temperature

15 - 30 °C

pH Value

5 - 7

Water type

Freshwater

Light

Medium to High

CO2

Low - High

Expected height

50 cm

KH

0 - 21 dKH

Species description

This exceptional horticultural selection, named 'Rubin Narrow Leaf', is a cultivated variant derived from the famous hybrid Echinodorus 'Rubin', which was also created in Germany by Hans Barth. It does not exist in the wild. The genus Echinodorus is native to the tropical wetlands of the Americas. This specific variant was selected to offer narrower, more slender, and graceful leaves compared to the standard Echinodorus 'Rubin', suitable for large freshwater aquariums. It belongs to the family Alismataceae and is a selected cultivated hybrid.

Care, breeding and tankmates

Tolerates temperatures between 15°C and 30°C. Adapts to acidic or neutral pH, preferably in the range between 5.0 and 7.0, and water hardness from very low to medium (KH 0-21 dKH). Benefits from regular water changes to remove organic compounds and promote healthy growth. It is sensitive to iron chlorosis in case of iron deficiency, which manifests as yellowing of new leaves. The large, slow-growing leaves can be prone to green spot algae or black brush algae if the nutrient balance is incorrect or if there are fluctuations in CO2 levels.

Geographic Origin and Distribution

This species originates from: Cultivar.

Origin

Selective breeding and cultivarsExtra-Amazon South AmericaCentral America and Caribbean

Plant profile

Placement
Background

This impressive sword plant is best placed in the background of medium to large aquariums. Its narrow, elongated leaves create striking lines that contrast well with other plants. Ensure adequate space around it, as it can grow quite large and shade out smaller species.

Botanical form
Rosette

This species is characterized by its classic rosette growth habit, producing narrow, elongated leaves from a central crown. The foliage features a distinctive reddish-brown hue, distinguishing it within the aquarium. Its appearance makes it a uniquely elegant specimen within the Echinodorus genus.

Growth
Slow

It generally exhibits a moderate growth rate, especially with strong lighting and a nutrient-dense substrate. Adding CO2 injection can accelerate its development, allowing new leaves to emerge faster. In lower-tech setups, growth will be slower but still steady and manageable.

Substrate
High

Echinodorus 'Rubin Narrow Leaf' is a heavy root feeder that requires a nutrient-rich substrate, preferably a high-quality aqua soil. Its extensive root system needs a substrate depth of at least 5 to 7 centimeters to anchor securely and absorb essential macronutrients. If planted in inert gravel or sand, the use of root tabs is mandatory to prevent nutrient deficiencies and stunted growth. A well-fertilized bed ensures the development of its intensely colored, elongated leaves.

Column fertilization
Recommended

While primarily a root feeder, it benefits from supplemental water column fertilization for micronutrients. Dosing a comprehensive liquid fertilizer helps maintain the vibrant health of the leaves. Balance column nutrients to prevent algae growth on its large leaf surfaces.

Root fertilization
Recommended

A nutrient-rich substrate or regular addition of root tabs is essential for this heavy root feeder. Placing fertilizer capsules directly beneath its root network ensures optimal macronutrient uptake. A well-fertilized root zone translates directly to larger, healthier leaves.

Trimming
Occasional

Maintenance involves pruning older or damaged outer leaves by cutting them close to the base. Do not simply snip leaves in half, as the remaining stem will rot and harm the plant. Thinning out the foliage occasionally helps prevent the plant from becoming too dense.

Propagation
Division

Propagation is achieved through adventitious plantlets that form along its flower stalks. Once these daughter plants develop roots and a few leaves, they can be snipped off. The new plantlets can then be replanted directly into the substrate to grow independently.

Sensitivity
Moderate

Echinodorus 'Rubin Narrow Leaf' is generally hardy but can be sensitive to sudden, drastic fluctuations in water parameters. It may experience melting when transitioning between emersed and submersed forms. The delicate new leaves are occasionally targeted by herbivorous snails or plecos.

Layout role
Background, accent

It serves as an excellent focal point or structural plant due to its shape and reddish-brown color. The orientation of its leaves draws the eye, adding depth to the aquascape. It pairs beautifully with contrasting stem plants or carpeting species.

Image gallery

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

Related species

Recommendations grouped by close relatives, companion choices, and similar care.

Variants and close relatives

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

Echinodorus 'Aflame'

Echinodorus 'Aflame'

Echinodorus 'Aflame'

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Echinodorus 'Aquartica'

Echinodorus 'Aquartica'

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Echinodorus 'Großer Bär'

Echinodorus 'Großer Bär'

Echinodorus 'Großer Bär'

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Echinodorus 'Ozelot Grün'

Echinodorus 'Ozelot Grün'

Echinodorus 'Ozelot Grün'

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Echinodorus 'Red Devil'

Echinodorus 'Red Devil'

Echinodorus 'Red Devil'

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Echinodorus 'Rosé'

Echinodorus 'Rosé'

Echinodorus 'Rosé'

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Echinodorus 'Rote Zora'

Echinodorus 'Rote Zora'

Echinodorus 'Rote Zora'

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Echinodorus 'Roter Oktober'

Echinodorus 'Roter Oktober'

Echinodorus 'Roter Oktober'

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Echinodorus 'Roter Pirat'

Echinodorus 'Roter Pirat'

Echinodorus 'Roter Pirat'

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Echinodorus Dschungelstar Nr. 2 'Kleiner Bär'

Echinodorus Dschungelstar Nr. 2 'Kleiner Bär'

Echinodorus Dschungelstar Nr. 2 'Kleiner Bär'

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Echinodorus × barthii

Echinodorus × barthii

Echinodorus barthii

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Echinodorus berteroi

Echinodorus berteroi

Echinodorus berteroi

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Echinodorus uruguayensis

Echinodorus uruguayensis

Echinodorus uruguayensis

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Echinodorus tenellus

Echinodorus tenellus

Echinodorus tenellus

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Echinodorus 'Vesuvius'

Echinodorus 'Vesuvius'

Echinodorus 'Vesuvius'

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Echinodorus bleherae (E. bleheri)

Echinodorus bleherae (E. bleheri)

Echinodorus bleherae (E. bleheri)

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Recommended companions

Compatible cards from coherent ecosystems with matching parameters.

Echinodorus decumbens

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Aquarius decumbens

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Ammannia pedicellata

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Ammannia pedicellata

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Orange dwarf crayfish (CPO)
Invertebrate

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Echinodorus cordifolius

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Bacopa monnieri "Rundblättrig"

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Echinodorus subalatus

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Aquarius subulatus

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Anubias barteri var. nana

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Sagittaria terres

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Red Cabomba

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Cabomba piauhyensis

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Cabomba aquatica

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Aciotis acuminifolia

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Echinodorus cordifolius ''ovalis''

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Green babaulti shrimp
Invertebrate

Green babaulti shrimp

Caridina cf. babaulti "Green"

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Ammannia crassicaulis

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Ramshorn Snail
Invertebrate

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Planorbella duryi

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Echinodorus cordifolius 'Tropica Marble Queen'

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Similar care

Cards with similar requirements, difficulty, habitat, and husbandry profile.

Argentine Sword

Argentine Sword

Echinodorus floribundus

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Echinodorus argentinensis

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Echinodorus muricatus

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Echinodorus palaefolius

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Large-leaf Sword

Large-leaf Sword

Aquarius macrophyllus

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Echinodorus 'Brauner Elefant'

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Echinodorus martii

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Echinodorus 'Apart'

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Echinodorus 'Devil's Eye'

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Echinodorus palifolius

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Echinodorus inpai

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Echinodorus schlueteri 'Leopard'

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Echinodorus angustifolius

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Echinodorus aschersonianus

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Echinodorus cordifolius 'Mini'

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Echinodorus grandiflorus ssp. aureus

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Echinodorus grandiflorus ssp. aureus

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Last updated: 06/16/2026
Echinodorus 'Rubin Narrow Leaf' Care Guide & Tank Setup | Atlarium