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PlantFreshwaterIntermediate

Microcarpaea minima

Microcarpaea minima

Microcarpaea minima is a tiny foreground plant that forms a dense and vibrant carpet, ideal for adding depth and texture to any aquascape. Its medium growth rate requires stable and optimized conditions to fully express its aesthetic potential and create a compact, lush lawn.

Taxonomy
Class:Liliopsida
Order:Lamiales
Family:Phrymaceae
Genus:Microcarpaea
Species:Microcarpaea minima

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Water Temperature

20 - 30 °C

pH Value

5 - 7

Water type

Freshwater

Light

High

CO2

High

KH

0 - 14 dKH

Species description

Microcarpaea minima is native to tropical and subtropical regions of Asia, where it thrives in shallow, moist aquatic environments. It typically colonizes the edges of streams, ponds, and rice paddies, growing both submerged and emergent in muddy or sandy substrates. Its presence in these areas indicates a preference for clear or slightly turbid waters, always rich in nutrients and with good sun exposure. Belonging to the family Phrymaceae, Microcarpaea minima is a member of a relatively small genus with few recognized species. Its classification highlights an interesting evolution within aquatic and semi-aquatic plants, showcasing specific adaptations for life in humid habitats.

Care, breeding and tankmates

This plant prefers soft, acidic to neutral water, with a pH range between 5.0 and 7.0 and a carbonate hardness (KH) between 0.0 and 14.0. The water temperature should be maintained between 20.0 and 30.0 °C to promote its metabolism and prevent thermal stress. Maintaining stable parameters is crucial, as sudden variations can stress the plant and potentially lead to leaf melt. Microcarpaea minima is generally robust but can suffer in low light conditions, showing elongated stems and pale leaves, or nutrient deficiencies leading to yellowing. Excessive algae proliferation can compete for light and nutrients, so a good balance is crucial.

Geographic Origin and Distribution

This species originates from: Asia.

Origin

East AsiaSouth and Southeast AsiaAustralia, New Guinea, and Oceania

Plant profile

Placement
Foreground

It is best placed in the midground or background where it can form dense, intricate bushes. Planting in small groups creates a beautifully textured focal point. It can also be used to blend transitions between different plant groupings.

Botanical form
Stem

This plant is characterized by extremely thin, delicate stems and tiny, opposite leaves. It has a very fine, almost feathery appearance when grown in dense clusters. The plant remains relatively small in diameter, making it suitable for intricate detailing.

Growth
Medium

It exhibits a moderate to fast growth rate under high lighting and CO2. The growth is heavily dependent on the availability of nutrients in the water column. In sub-optimal conditions, its growth slows and the stems may become thin.

Substrate
Medium
Column fertilization
Recommended

It relies heavily on liquid fertilization to sustain its fast growth and delicate form. Regular dosing of a comprehensive fertilizer is necessary. It is particularly responsive to adequate levels of trace elements.

Root fertilization
None

While it takes up most nutrients through its leaves, a good quality aquasoil promotes strong root development. Root tabs can be used to supplement older substrates. Fine-grained soil is ideal for its fragile root system.

Trimming
Occasional

Regular trimming is needed to maintain its bushy appearance and prevent it from becoming too tall. Pruning encourages side branching, resulting in a denser cluster. The delicate stems must be cut with very sharp scissors to avoid crushing them.

Propagation
Cuttings

Propagation is straightforward by taking stem cuttings and replanting them in the substrate. The delicate cuttings root relatively quickly if lighting is sufficient. Frequent trimming and replanting is the best way to multiply the plant.

Sensitivity
Moderate

It is quite sensitive to shading and requires unhindered access to light. Heavy algae growth can quickly smother and kill its tiny leaves. It demands stable water parameters and clean water conditions.

Layout role
group, Foreground, Midground, Nano

It serves as an excellent midground accent plant due to its incredibly fine texture. It provides striking contrast when placed next to broad-leaved plants. It is highly valued in nano aquascapes for its small proportions.

Image gallery

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

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Last updated: 06/16/2026
Microcarpaea minima Care Guide & Tank Setup | Atlarium