Biosecurity Shipping Limitations apply

Shipping Allowed?

About Java Fern

Java Fern is one of the most popular and dependable freshwater aquarium plants, valued for its hardiness, attractive green foliage, and ability to grow attached to rocks and driftwood.

It is an excellent choice for beginners and low-tech aquariums because it requires relatively little light and does not require CO₂. Its long, lance-shaped leaves create a natural appearance and provide excellent contrast against smaller foreground plants and mosses.

Java Fern is a rhizome plant, so the rhizome should never be buried beneath the substrate. Instead, attach the plant to driftwood or rocks and allow its roots to naturally establish around the hardscape.

Once established, Java Fern grows slowly to moderately and requires very little maintenance. New plantlets can also develop from older leaves, allowing the plant to naturally reproduce within the aquarium.

Its tough leaves make it particularly suitable for aquariums containing fish that may damage or uproot more delicate plants.

Quick Care Guide

Scientific Name: Microsorum pteropus
Common Name: Java Fern
Plant Type: Aquatic Fern / Rhizome Plant
Growth Rate: Slow to Moderate
Difficulty: Beginner
Lighting: Low to Moderate
CO₂ Required: No
Temperature: 20–28°C
pH: 6.0–8.0
Water Hardness: Soft to Hard
Placement: Midground to Background / Hardscape
Suitable For: Community aquariums, shrimp tanks, nano aquariums, low-tech setups, and planted aquascapes

Frequently Asked Questions

Does Java Fern require CO₂?

No. Java Fern grows well without CO₂ and is one of the best plants for low-tech aquariums. CO₂ can encourage faster growth but isn't necessary.

Can Java Fern be planted in substrate?

The rhizome should remain above the substrate. Only the roots should be buried or allowed to grow into the substrate.

Can Java Fern grow on driftwood?

Yes. Driftwood and rocks are ideal surfaces. Secure the plant with aquarium-safe glue, thread, or fishing line until the roots establish.

How does Java Fern reproduce?

New plantlets can develop from mature leaves, particularly around the edges or tips. These can eventually be separated and attached elsewhere.

Is Java Fern suitable for shrimp tanks?

Yes. Its broad leaves provide excellent surfaces for biofilm and its dense growth can provide shelter for shrimp and shrimplets.

Common Mistakes

Burying the rhizome
Keep the rhizome exposed. Burying it can cause the plant to rot.

Using excessive lighting
Java Fern does not require strong light. Excessive lighting can encourage algae growth on the leaves.

Constantly moving the plant
Allow the roots time to establish on the hardscape.

Removing leaves too quickly
Older leaves can develop plantlets, so inspect damaged or older foliage before removing it.

Expecting rapid growth
Java Fern is naturally slow growing and requires patience while establishing.