Java Fern Narrowleaf

Java Fern - Microsorum pteropus

Origin: Southeast Asia
Type: Rhizomatous fern
Placement: Midground to background
Light Needs: Low to moderate
CO₂ Needs: Low
Growth Rate: Slow to moderate
Max Height: 20–35 cm (8–14 inches)
Color: Deep green, long sword-like leaves

🌱 Care Tips:

• Do NOT bury the roots—attach to driftwood, rocks, or decorations.

• Hardy and beginner-friendly—tolerates a wide range of water conditions.

• Propagates via tiny plantlets on mature leaves.

• Great for shrimp tanks, low-tech setups, and planted aquascapes.

Method 1: Natural Propagation

1. Observe your Java Fern: As your plant matures, you’ll notice small black or brown spots on the leaves. These spots are actually baby Java Ferns developing.
2. Wait for the babies to grow: Allow the babies to grow and develop their own leaves and rhizomes. This process can take several weeks to a few months.
3. Separate the babies: Once the babies have developed, gently separate them from the parent plant using a pair of scissors or tweezers. Be careful not to damage the rhizome or roots.
4. Anchor the babies: Attach the separated babies to a rock, driftwood, or other suitable substrate using a small amount of superglue or fishing line.

Method 2: Cutting and Propagation

1. Cut healthy rhizomes: Choose healthy, vigorous rhizomes with at least one frond and a root system. Cut the rhizome into sections, making sure each section has a node (where a leaf meets the stem).
2. Prepare the cut ends: Trim the cut ends of the rhizome sections to promote rooting. You can use a small amount of superglue to seal the cut ends.
3. Anchor the cuttings: Attach the cuttings to a rock, driftwood, or other suitable substrate using a small amount of superglue or fishing line.
4. Provide optimal conditions: Ensure the cuttings receive adequate lighting, water circulation, and nutrients to promote healthy growth.

Tips and Precautions

• Monitor water conditions: Maintain optimal water parameters, including pH, temperature, and nutrient levels, to promote healthy growth and propagation.
• Avoid over-propagation: Don’t over-propagate your Java Ferns, as this can lead to overcrowding and reduced growth.
• Be patient: Propagation can take time, so be patient and observe your plants’ progress.
• Avoid damaging the rhizome: When separating or cutting rhizomes, avoid damaging the delicate tissue, as this can lead to reduced growth or death.

By following these guidelines, you can successfully propagate Java Fern babies and enjoy a thriving, diverse aquarium.