Microsorum pteropus - Java fern

Microsorum pteropus, commonly known as Java fern, is one of the most popular and widely kept aquarium plants in the world — and for good reason. Its distinctive lance-shaped, wavy-edged leaves in deep green, slow to moderate growth rate, and extraordinary tolerance of a wide range of conditions make it one of the most reliable and forgiving plants available for any aquarium type.

Java fern should not be planted in the substrate. Instead, the rhizome must be attached to wood or rock using fishing line, cotton thread, or aquarium-safe glue, with the roots free to anchor onto the surface over time. It thrives in low to medium light without CO2 injection and adapts to a very wide range of water conditions, including harder water. Once established it is very long-lived and largely self-maintaining.

Supplied as an established potted plant, Microsorum pteropus suits virtually any aquarium from 30 litres upward. Its versatility, easy care, and natural compatibility with hardscape make it a perennial staple in planted aquariums, biotope set-ups, community tanks, and cichlid aquariums where most other plants would be eaten or uprooted.