Microsorum pteropus ‘Windeløv’,(Windeløv Java Fern)

Microsorum pteropus ‘Windeløv’, commonly known as Windeløv Java Fern, is a unique and attractive variant of the Java Fern. It is characterized by its finely branched leaf tips, giving it a delicate, lace-like appearance. This plant is hardy and easy to care for, making it a great choice for both beginners and experienced aquarists. Here’s a detailed care guide:

1. Overview

• Scientific Name: Microsorum pteropus ‘Windeløv’
• Common Name: Windeløv Java Fern, Lace Java Fern
• Origin: Cultivated variant (original species from Southeast Asia)
• Difficulty Level: Easy
• Growth Rate: Slow to Moderate
• Light Requirement: Low to Medium
• CO2 Requirement: Not required

2. Tank Requirements

• Tank Size: Suitable for nano tanks (5 gallons) and larger aquariums.
• Water Temperature: 68–82°F (20–28°C).
• pH Level: 6.0–7.5 (slightly acidic to neutral).
• Water Hardness: Soft to moderately hard (2–15 dGH).

3. Lighting

• Low to Medium Light is sufficient for Windeløv Java Fern.
• Avoid intense lighting, as it can cause algae to grow on the leaves.
• Provide 6–8 hours of light daily.

4. CO2 and Nutrients

• CO2 Injection: Not required, but can promote slightly faster growth.
• Fertilization:
  • This plant is not heavy feeder, but occasional dosing of a liquid fertilizer can benefit its growth.
  • If the leaves show signs of nutrient deficiency (e.g., yellowing), increase fertilization.

5. Planting and Attachment

• Do not bury the rhizome: Unlike most plants, Java Fern should not be planted in the substrate. Burying the rhizome can cause it to rot.
• Attachment:
  • Attach the plant to rocks, driftwood, or other hardscape using fishing line, thread, or super glue (cyanoacrylate gel).
  • Over time, the plant’s roots will naturally anchor themselves to the surface.

6. Water Quality and Maintenance

• Perform weekly water changes (20–30%) to maintain water quality.
• Ensure good water circulation to prevent debris from accumulating on the leaves.

7. Common Issues

• Black or Brown Spots on Leaves: This is a natural part of the plant’s reproduction process. Small plantlets will grow from these spots.
• Algae Growth on Leaves: Can occur if lighting is too intense or if the plant is exposed to direct sunlight. Reduce light intensity or duration, and consider adding algae-eating species like Amano shrimp or Nerite snails.
• Yellowing Leaves: May indicate a nutrient deficiency. Increase fertilization or check water parameters.

8. Propagation

• Windeløv Java Fern propagates through rhizome division or plantlets:
  • Rhizome Division: Cut the rhizome into sections, ensuring each section has at least 2–3 leaves. Attach the new sections to hardscape.
  • Plantlets: Small plantlets will grow from black or brown spots on the leaves. Once they develop roots and a few leaves, they can be detached and attached to a new surface.

9. Tank Mates

• Compatible with most peaceful fish and invertebrates.
• Avoid species that may nibble on the leaves, such as goldfish or some cichlids.
• Ideal tank mates include small tetras, rasboras, shrimp, and snails.

10. Tips for Success

• Avoid frequent handling or moving the plant, as it prefers stable conditions.
• If algae becomes a problem, reduce light intensity or duration and ensure proper nutrient balance.
• Windeløv Java Fern is an excellent choice for low-tech or low-maintenance aquariums.

By following these guidelines, you can enjoy the unique beauty of Windeløv Java Fern in your aquarium.