Source: Wikimedia Commons
Java Fern
BeginnerLeptochilus pteropus
A fern aquatic plant from Southeast Asia. Attaches to driftwood and rocks, popular for its unique leaf shape.
About
Microsorum pteropus, now botanically reclassified as Leptochilus pteropus, is a highly variable epiphytic fern native to Malaysia, Thailand, northeastern India, and parts of southern China, where it grows attached to riparian roots and rocks in and alongside streams. Under the trade name 'Java fern,' it has become one of the most universally used aquarium plants worldwide. Its thick, glossy, dark-green fronds provide a mature, substantial quality to compositions built around driftwood. The rhizome must be attached to hardscape — burying it causes rot — and the plant demands neither strong light nor CO2, making it accessible to complete novices. Propagation is distinctive: adventitious plantlets develop spontaneously on the tips and undersides of mature leaves, rooting and floating free to colonize nearby surfaces. Several distinct leaf-form varieties — narrow-leaf, trident, and needle-leaf among them — offer diverse aesthetic options.
Source: Wikipedia (CC BY-SA 4.0)
Basic Info
Origin
Southeast Asia (Malaysia, Thailand, northeastern India, and southern China)
Lifespan
Perennial
Size
10-30cm
Temperature
20〜28℃
Watering & Fertilizer
Liquid fertilizer
Growing Tips
Housing
流木や石に活着させる（砂利に埋めない）
Lighting
低光量でも育つ
Notes
CO2無添加でもOK
Breeding
葉の裏に子株ができて増える
Maintenance
成長が遅いのでコケ対策を
Java Fern FAQ
QWhat is the growing difficulty level for Java Fern?
Beginner. A variety suitable for beginners. No special equipment or experience is required—you can grow it without problems by setting up a basic cultivation environment.
QWhat is the ideal temperature for Java Fern?
The ideal temperature for Java Fern is 20〜28℃. Avoid sudden temperature changes and maintain a stable environment.
QWhat is the lifespan of Java Fern?
The average lifespan of Java Fern is Perennial. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Java Fern get?
The mature size of Java Fern is 10-30cm. This may vary slightly depending on cultivation environment and individual differences.
QHow should I water and fertilize Java Fern?
Java Fern: watering & fertilizer — Liquid fertilizer. Aim for appropriate frequency and amount.
QWhat is the typical price for Java Fern?
The price of Java Fern varies significantly by variety, characteristics, size, and lineage. Please check ボタちょく's price guide for the latest market information.
Last updated: June 24, 2026
References & Sources
Edited & verified by: BoTachoku Editorial Team
The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.
Taxonomy & Authority
Regulations & Conservation Status
Sources: 環境省 特定外来生物等一覧(外来生物法) / CITES Appendix II 植物掲載分類群(科・属レベル)
Regulations may change. Always verify the latest information with the relevant authorities.
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