Plant Profile
Java Fern Windelov is a famous, heavily cultivated aquatic fern created by Tropica and named after the company's founder, Holger Windeløv. What sets this cultivar apart from traditional Java Fern is its stunning foliage structure, featuring finely branched, lacy leaf tips that split into elaborate, antler-like crests. This unique branching habit gives mature specimens a remarkably dense, bushy texture that elevates it among low-light aquarium plants. Staying compact at 3 to 5 inches in height, it fits effortlessly into midground arrangements and nano layouts where its intricate fronds catch the light and water current.
Key Features & Notes
- Tough, fibrous foliage easily withstands curious nipping from herbivorous fish like cichlids, goldfish, and large snails.
- Lacy, crest-branched leaf tips create a densely tufted appearance that stands out from standard flat-leaf cultivars.
- Exceptional hardiness allows it to thrive in non-CO2 tanks, where it thrives in low-light environments without demanding specialized substrates.
Care & Planting Instructions
- Prep the plant by removing it from the pot and clearing all rockwool from the roots.
- Java Fern Windelov is an epiphytic fern that should be attached to rocks or driftwood with aquarium-safe glue or thread; never bury the horizontal rhizome in substrate, as it will rot and melt.
- Avoid making drastic changes to your water parameters or lighting because unstable conditions are the primary cause of leaf melt in new specimens.
- While this plant is hardy and low-maintenance in standard setups, gentle water movement and regular liquid fertilizing will yield much faster growth and broader fronds.
- Master long-term care and troubleshoot common leaf issues by checking out our Java Fern Care Guide.
- Final size and foliage pattern depend entirely on your specific aquarium conditions; please note that photos are a representation, and individual plants may vary.
Quick Facts
Listed information should be treated as general guidelines only. Team Buce Plant encourages you to do thorough research to ensure healthy growth!
| Attribute |
Specification |
| Scientific Name |
Microsorum pteropus 'Windelov' (syn. Leptochilus pteropus) |
| Common Name(s) |
Java Fern Windelov, Windelov Fern, Crested Java Fern, Lacy Java Fern |
| Family |
Polypodiaceae |
| Plant Type |
Epiphyte (Rhizome Fern) |
| Care Difficulty |
Beginner / Easy (Low-Tech Compatible) |
| Light Requirement |
Low to Medium |
| CO2 Requirement |
Not Required (Beneficial) |
| Placement / Usage |
Midground, Focal Hardscape Accent, Nano Layouts |
| Height / Size |
3"–5" (7.5–13 cm) |
| Growth Rate |
Slow to Moderate |
| Water Parameters |
pH 6.0–7.5 | Temperature 68°F–82°F (20°C–28°C) |
| Propagation Method |
Rhizome Division & Adventitious Plantlets |
| Origin |
Indonesia / Cultivated Variety (Tropica) |
Frequently Asked Questions
1. Why are the tips of my Java Fern Windelov leaves lacy and split?
That lacy, split appearance is the hallmark feature of the Windelov cultivar! Unlike classic Java Fern with its smooth, single-blade fronds, Windelov was specifically bred by Tropica for its multi-forked, crest-like leaf ends that create a distinctively bushy silhouette in your tank.
2. Why are there small black spots and tiny leaves growing under my Java Fern Windelov leaves?
Do not panic; your plant is not diseased! Java Fern Windelov reproduces naturally through adventitious plantlets. Small dark bumps (sporangia) form along the undersides of mature leaves, sprouting tiny brown roots and mini green fronds. Once these baby plantlets develop 3–4 leaves, you can gently pop them off the mother leaf and glue them elsewhere in your aquarium.
3. Can I plant Java Fern Windelov into substrate?
No. Java Fern Windelov is an epiphyte that absorbs nutrients directly from the water column through its foliage and fine root network. If you bury its horizontal rhizome beneath aquarium soil, sand, or gravel, the stem will suffocate, rot, and die. Always attach it to rocks or driftwood using aquarium-safe glue or thread.
4. Will fish like cichlids or goldfish eat Java Fern Windelov?
Generally, no. Java Fern leaves are thick, fibrous, and contain bitter-tasting compounds that deter most plant-eating fish. While aggressive diggers might knock it off hardscape if not glued securely, they rarely consume the foliage.
