Java Fern

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Java Fern Java Fern is the quintessential low-light aquarium fern — one of the most widely grown, universally recommended, and enduringly beloved aquarium plants in the world. Prod ucing broad, dark green leaves on creeping rhizomes attached to driftwood or rock, Java Fern has introduced generations of aquarists to the beauty of planted aquariums and continues to serve as the most reliable and forgiving hardscape-attached plant in the hobby. Planting tip: Java Fern should be attached to driftwood, rock, or other hardscape with the rhizome or roots fully exposed — never buried in substrate. Use cotton thread or aquarium-safe adhesive to secure it, and the plant will anchor itself naturally over time. Java Fern must always be attached to driftwood, rock, or other hardscape — the rhizome must never be buried in substrate. Burying the rhizome causes rot and will kill the plant. The rhizome grips the hardscape surface through roots, establishing itself naturally over weeks and months. Thread or aquarium adhesive work for initial attachment. Once established, Java Fern is one of the most stable and long-lived plants in the freshwater aquarium. Java Fern is an easy plant that requires no CO₂ supplementation and grows well under low lighting — making it ideal for virtually every freshwater aquarium type from beginner community tanks to sophisticated low-tech nature-style layouts. Temperatures between 68 and 82°F and a pH of 6.0 to 7.5 cover the full range of typical aquarium conditions. Regular liquid fertilization is beneficial but not essential in established tanks. In the aquascape, Java Fern provides classic, broad-leaved midground structure on driftwood and rock that suits virtually every style of planted aquarium. Its dark green leaves create natural depth and contrast in the midground, and the hardscape-attached growth habit means it can be placed at any height in the aquarium. It pairs beautifully with mosses, Anubias, Bucephalandra, and Cryptocoryne in nature-style and biotope compositions. Java Fern is a timeless classic that has earned its central place in the planted aquarium hobby through decades of reliable, beautiful performance. Its easy care, broad-leaved elegance, and universal compatibility make it a plant that every aquarist should keep and a cornerstone of any planted aquarium. Care & Specifications Difficulty Easy Placement Midground Max Height 12–16 inches Light Level Low Temperature 68–82°F pH 6.0–7.5 CO2 Needs Not Required Origin Southeast Asia Notes The quintessential low-light aquarium fern. Broad, dark green leaves on creeping rhizomes. Attach to wood or rock — never bury the rhizome. Slow-growing but long-lived and extremely reliable. Show more