Java Fern

Position and planting

Attach to wood or stone where appropriate, and keep rhizomes exposed rather than burying them.

Attach to rock or wood and keep the rhizome above the substrate.

Attach to rock or driftwood; avoid burying the rhizome.

Lighting, CO₂ and nutrition

Light: Low. CO₂: Not required. Difficulty: Easy.

Added CO₂ is not required in the current library guide, but stable light and sufficient nutrients remain important.

Keeping it healthy

Provide consistent light, suitable nutrition, and routine maintenance. Remove decaying leaves. Watch for algae or melting after transitions, and troubleshoot conditions before making sudden changes.