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Micranthemum micranthemoides

Micranthemum micranthemoides

Micranthemum micranthemoides is a versatile stem plant, popular for creating lush, bright green midground carpets or dense bush-like structures in planted aquariums. Its medium growth rate and moderate light requirements make it a suitable choice for various aquascaping styles, offering a delicate texture and vibrant coloration.

Taxonomy
Class:Liliopsida
Order:Lamiales
Family:Linderniaceae
Genus:Micranthemum
Species:Micranthemum micranthemoides

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Water Temperature

20 - 28 °C

pH Value

6 - 7.5

Water type

Freshwater

Light

Medium - High

CO2

Medium - High

Expected height

10 cm

Expected width

15 cm

KH

2 - 10 dKH

Species description

Historically found in the southeastern United States, Micranthemum micranthemoides thrives in shallow, clear waters of streams, ponds, and marshes, often growing submerged or emergent along the banks. Its natural habitat is characterized by soft, slightly acidic conditions and moderate to high light exposure, reflecting its adaptability to various aquatic environments. This widespread distribution underscores its resilience and capacity to flourish under diverse environmental pressures. Belonging to the Linderniaceae family, Micranthemum micranthemoides has undergone some taxonomic reclassification over the years, occasionally being confused with other similar-looking species like Micranthemum 'Monte Carlo' or Micranthemum umbrosum. The common name "Large Pearl Grass" often leads to confusion, though its distinct growth habit and leaf morphology differentiate it from other Micranthemum species.

Care, breeding and tankmates

This plant thrives in soft to moderately hard water, with a KH range of 2-12 and a pH between 6.0 and 7.5, aligning with typical tropical community tank parameters. Maintaining a stable water temperature between 20-28°C (68-82°F) is vital for consistent growth and overall health. Pristine water quality, achieved through regular water changes and efficient filtration, is paramount to prevent stress and disease. While generally robust, Micranthemum micranthemoides can be susceptible to common aquarium issues if conditions are not met. Algae growth can become a problem under imbalanced light, CO2, or nutrient levels, particularly on its fine leaves.

Geographic Origin and Distribution

This species originates from: Southeastern United States.

Origin

North America

Plant profile

Placement
Midground

This aquatic species is typically utilized as a midground to background bush in aquariums. Its growth habit makes it ideal for creating a lush, continuous grouping that adds depth to the aquascape. It should be planted in small portions spread evenly to encourage proper expansion and filling of the designated area.

Botanical form
runner

Micranthemum micranthemoides presents a distinctive botanical structure characterized by its small, bright green, delicate rounded leaves. When grown emersed, it may look quite different compared to its fully submersed aquatic form. In the aquarium environment, it adapts to the water conditions by producing foliage that is perfectly suited for submerged photosynthesis and structural stability.

Growth
Medium

Under lower light intensities, the growth rate of Micranthemum micranthemoides remains relatively slow to moderate. However, when cultivated with high lighting, CO2 injection, and a rich nutrient profile, its growth accelerates noticeably. It will develop side shoots rapidly, quickly covering the available space and requiring more regular maintenance.

Substrate
High
Column fertilization
Recommended

Liquid fertilization is highly recommended to supplement the nutrient uptake of Micranthemum micranthemoides directly from the water column. A comprehensive liquid fertilizer that includes essential micro and macronutrients will greatly support the health of its delicate foliage. Regular and measured dosing becomes particularly important in high-energy aquariums to avoid any nutritional deficiencies.

Root fertilization
Recommended

As a plant that develops a fine root system, it draws significant nourishment directly from the substrate. Utilizing a nutrient-rich aquasoil or inserting high-quality root tabs will significantly enhance its vitality and growth rate. Robust root fertilization is a key factor in achieving a dense, healthy, and resilient plant grouping.

Trimming
Occasional

Trimming Micranthemum micranthemoides is a straightforward process that helps maintain its desired shape and density. Stems can be topped and replanted to encourage bushier sideways growth. It is also crucial to regularly remove any older or decaying plant material to ensure optimal light penetration and overall hygiene.

Propagation
Cuttings

The propagation of Micranthemum micranthemoides occurs naturally and effectively within a healthy aquarium environment. Stem cuttings can simply be removed from the main plant and directly inserted into the substrate. Even relatively small cuttings or runner sections possess the capability to establish themselves and form new colonies.

Sensitivity
Moderate

Micranthemum micranthemoides is generally considered a hardy species, capable of tolerating a fairly wide range of water parameters. It does not typically exhibit extreme sensitivity to standard aquarium medications or minor chemical fluctuations. Nevertheless, care should be taken to maintain a balanced ecosystem, as slow-growing or shaded parts can become susceptible to algae accumulation.

Layout role
Midground, Foreground, group

In the art of aquascaping, Micranthemum micranthemoides primarily functions to provide a dense, textural background or midground element. Its unique structural appearance offers an excellent visual contrast when placed adjacent to rocks, driftwood, or broader-leafed species. Ultimately, it helps to seamlessly blend different hardscape features and softens the overall aesthetic of the tank.

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.

Micranthemum sp. "Montecarlo-3"

Micranthemum sp. "Montecarlo-3"

Micranthemum sp. "Montecarlo-3"

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Cuba (HC)

Cuba (HC)

Micranthemum callitrichoides

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Monte Carlo

Monte Carlo

Micranthemum tweediei 'Monte Carlo'

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Micranthemum tweediei

Micranthemum tweediei

Micranthemum tweediei

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Hemianthus glomeratus

Hemianthus glomeratus

Micranthemum glomeratum

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Hemianthus sp. "Amano Pearl Grass"

Hemianthus sp. "Amano Pearl Grass"

Hemianthus sp. "Amano Pearl Grass"

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Micranthemum umbrosum

Micranthemum umbrosum

Micranthemum umbrosum

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Lindernia anagallis

Lindernia anagallis

Lindernia anagallis

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Lindernia dubia

Lindernia dubia

Lindernia dubia

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Lindernia grandiflora

Lindernia grandiflora

Lindernia grandiflora

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Lindernia sp. 'India'

Lindernia sp. 'India'

Lindernia sp. 'India'

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Hemianthus micranthemoides

Hemianthus micranthemoides

Hemianthus micranthemoides

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Hemianthus sp. "Göttingen"

Hemianthus sp. "Göttingen"

Hemianthus sp. "Göttingen"

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Hemianthus callitrichoides 'Cuba'

Hemianthus callitrichoides 'Cuba'

Hemianthus callitrichoides "Cuba"

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Lindernia rotundifolia

Lindernia rotundifolia

Lindernia rotundifolia

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Lindernia rotundifolia 'Variegated'

Lindernia rotundifolia 'Variegated'

Lindernia rotundifolia 'Variegated'

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Recommended companions

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Bucephalandra sp. "Black Leaf"

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Ammannia sp. 'Bonsai'

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Bucephalandra motleyana "Braun-rot" ("Serimbu")

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Bucephalandra motleyana "Kapit"

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Bucephalandra sp. "Bukit Kelam / Sintang"

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Bucephalandra sp. "Melawi"

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Commelinaceae sp. "Green"

Commelinaceae sp. "Green"

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Cordyline fruticosa

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Cryptocoryne balansae

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Bucephalandra motleyana "Braun-rot narrow"

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Similar care

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

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Climacium japonicum

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Cryptocoryne beckettii "Viridifolia"

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Cryptocoryne beckettii "Petchii Pink"

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Ceratopteris siliquosa

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Alternanthera reineckii "rosaefolia minor"

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Cryptocoryne albida

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Blyxa cf. vietii

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Bacopa monnieri "Rundblättrig"

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Ceratophyllum demersum "Mexiko" ("Rotstängelig")

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Last updated: 06/16/2026
Micranthemum micranthemoides Care Guide & Tank Setup | Atlarium