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Microsorum pteropus "Taiwan"
Microsorum pteropus "Taiwan"
Microsorum pteropus "Taiwan" is a captivating variant of Java fern, valued for its unique aesthetics and hardiness. This slow-growing plant is perfectly suited for the midground, enriching the aquarium layout with its distinctive leaf structure.
Class:Liliopsida
Order:Polypodiales
Family:Polypodiaceae
Genus:Microsorum
Species:Microsorum pteropus "Taiwan"
Formerly known as:
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Water Temperature
4 - 30 °C
pH Value
5 - 7.5
Water type
Freshwater
Light
Low to High
CO2
High
Expected height
45 cm
Expected width
45 cm
KH
0 - 14 dKH
Species description
Geographical Origin and Habitat: Microsorum pteropus, in its wild form, is widely distributed across tropical and subtropical regions of Asia, particularly in Southeast Asia, where it grows as a rhizomatous plant on rocks and driftwood along waterways, often in areas periodically flooded or completely submerged. The "Taiwan" designation suggests that this particular form or cultivar was originally discovered or developed on the island of Taiwan, or possesses phenotypic characteristics that distinguish it as a geographical variant. In these environments, it anchors tenaciously to hard substrates, thriving even in waters with moderate currents and variable light conditions.
Taxonomy & Genetics: Microsorum pteropus "Taiwan" belongs to the Polypodiaceae family, which encompasses a vast number of ferns. Specifically, it is a variety or cultivar of the well-known Microsorum pteropus, commonly called Java fern. The differences between the various forms of Microsorum pteropus, including the "Taiwan" variant, are often morphological in nature, relating to the shape, size, or texture of the leaves, rather than distinct genetic species-level distinctions. These variations are frequently the result of adaptations to specific microclimates or horticultural selections aimed at enhancing certain aesthetic characteristics.
Physical Structure: This variant of Microsorum pteropus is distinguished by its leaves, which tend to be slightly narrower and more elongated than the standard form, sometimes with a more finely textured or undulating appearance, lending it a more complex texture and elegant look. The plant grows from a creeping, branching rhizome, which is its fundamental structure and from which both thin anchoring roots and leaves emerge. It is crucial not to bury the rhizome in the substrate, as this can lead to rot and the demise of the plant, given its epiphytic nature.
Color & Texture: Microsorum pteropus "Taiwan" displays a bright or medium-dark green coloration, which can vary in intensity depending on lighting conditions and nutrient availability. The surface of the leaves is generally smooth and slightly leathery to the touch, offering a pleasing contrast to softer-leaved or lighter-colored plants. The "Taiwan" form may exhibit more pronounced venation or a slight undulation at the leaf margins, adding further visual interest and making it easily distinguishable from other Java fern forms.
Care, breeding and tankmates
Lighting & CO2: Microsorum pteropus "Taiwan" is exceptionally adaptable in terms of lighting, thriving in conditions ranging from low to high, although medium light is often ideal for promoting healthy growth without encountering issues with algae on the leaves. With more intense lighting, it is essential to ensure adequate CO2 supply and nutrients to prevent algal growth and support a faster metabolism. While not strictly necessary, the addition of CO2 can significantly accelerate growth and make the plant more lush, leading to larger leaves and an overall denser, more luxuriant appearance.
Nutrition & Substrate: As an epiphytic plant, Microsorum pteropus "Taiwan" absorbs nutrients directly from the water through its leaves and rhizome, making liquid fertilizers the most effective method of nutrition. It does not require a nutrient-rich substrate to thrive, and the rhizome should never be buried, as this can cause it to decay. To secure it, you can gently tie it to driftwood, rocks, or other decorative elements with nylon thread or aquatic plant safe cyanoacrylate glue; over time, its roots will firmly attach to the support.
Water Chemistry: This fern is remarkably tolerant of a wide range of water parameters, making it an excellent choice for aquarists of all experience levels. It prefers water temperatures between 4.0 and 30.0 °C, though optimal growth typically occurs within the tropical range of 20-28 °C. The plant adapts well to a pH between 5.0 and 7.5, tolerating both slightly acidic and neutral conditions. Similarly, carbonate hardness (KH) can range from 0.0 to 14.0, demonstrating its robustness even in very soft or moderately hard water.
Space Management & Placement: Microsorum pteropus "Taiwan" is an ideal choice for the midground of the aquarium, where its height and foliage can create a natural focal point or excellent cover for aquarium inhabitants. Thanks to its epiphytic nature, it can be easily attached to driftwood and rocks, allowing for great flexibility in layout design and the creation of depth. This placement not only enhances its aesthetic appeal but also facilitates propagation and maintenance, ensuring the rhizome remains exposed to the water for optimal growth.
Pruning:
Risks & Diseases: Despite its hardiness, Microsorum pteropus "Taiwan" can be susceptible to a few issues. The most common is leaf necrosis, often manifesting as black spots or transparent areas, which can be caused by potassium deficiency, excessive direct lighting, or algal stress. Overexposure to glutaraldehyde-based products can also cause significant damage, leading to leaf "melt." It is crucial to ensure the rhizome is never buried in the substrate, as this will inevitably lead to its rot and the demise of the plant.
Geographic Origin and Distribution
Microsorum pteropus, in its wild form, is widely distributed across tropical and subtropical regions of Asia, particularly in Southeast Asia, where it grows as a rhizomatous plant on rocks and driftwood along waterways, often in areas periodically flooded or completely submerged. The "Taiwan" designation suggests that this particular form or cultivar was originally discovered or developed on the island of Taiwan, or possesses phenotypic characteristics that distinguish it as a geographical variant. In these environments, it anchors tenaciously to hard substrates, thriving even in waters with moderate currents and variable light conditions.
Origin
South and Southeast AsiaEast AsiaSelective breeding and cultivars
Plant profile
- Placement
- No verified data available
- Botanical form
- No verified data available
- Growth
- No verified data available
- Substrate
- No verified data available
- Column fertilization
- No verified data available
- Root fertilization
- No verified data available
- Trimming
- No verified data available
- Propagation
- No verified data available
- Nutrients
- No verified data available
- Sensitivity
- No verified data available
- Layout role
- No verified data available
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.
