Java Fern vs Anubias Comparison Guide: Low-Tech Epiphyte Pick

Two rhizome-mounted plants dominate every low-tech planted tank starter pack and look interchangeable on the shop shelf. The java fern vs anubias question matters because leaf size, growth rate and final form are wildly different despite both being mountable epiphytes. This guide from Gensou Aquascaping at 5 Everton Park clarifies the choice for hardscape planting on driftwood and rock.

Quick Verdict

Pick java fern if you want a tall background or midground filler with feathery foliage in a low-tech tank under medium lighting. Pick anubias if you want compact, broad-leafed accents with extreme durability and a slower, more controlled growth profile.

Java Fern: The Tall Feathery Background

Java fern (Microsorum pteropus) grows 20-35cm tall with elongated lance-shaped leaves. Standard, narrow leaf, needle leaf, windelov and trident varieties offer different leaf morphologies. Light requirement: low to medium, 30-50 PAR. CO2 not required. They reproduce by adventitious plantlets that form on leaf edges and tips, which detach and root themselves. Water tolerance: pH 5.5-7.5, GH 1-15, temperature 20-28°C. The rhizome must stay above substrate or it rots. Tie or glue to driftwood and rocks; the rhizome eventually grips by itself.

Anubias: The Compact Broad-Leaf Accent

Anubias (Anubias barteri and varieties) grows 5-25cm depending on variety. Nana, nana petite, coffeefolia, frazeri and barteri var. broad leaf cover the size spectrum. Leaves are thick, leathery and dark green — almost indestructible against algae and herbivorous fish. Light: very low to medium, 20-50 PAR. Bright direct light promotes algae growth on the slow-replacing leaves, so dim is preferred. Water tolerance matches java fern. Same rhizome-above-substrate rule. Growth rate is dramatically slower — a single new leaf every 4-6 weeks.

Side-by-Side Spec Comparison

Height: java fern 25cm typical, anubias 5-20cm depending on variety. Leaf form: java fern lance and feathery, anubias broad and leathery. Growth rate: java fern moderate, anubias slow to very slow. Light: java fern 30-50 PAR, anubias 20-40 PAR. Algae resistance: anubias excellent, java fern moderate (older leaves attract algae). Propagation: java fern self-propagates via plantlets, anubias requires rhizome cutting. Price: java fern SGD 6-15 per portion, anubias SGD 8-25 per portion grade-dependent.

Decision Framework

If you need height and want a dense background curtain in a 60cm-tall tank, java fern delivers. If you want low-profile accents on driftwood or rocks in foreground positions, anubias nana petite or nana fits. If your fish are herbivorous (silver dollars, severum, uaru), anubias is the only safe choice — the leaves are too tough to damage. If your lighting is high (over 60 PAR), anubias attracts algae quickly; pair them with shaded positions only. For a complete low-tech scape, both species together cover front-mid-back layers without overlap.

Singapore Sourcing and Pricing

Iwarna and Polyart carry both species year-round. Standard java fern runs SGD 6-12 per pot, with windelov and trident at SGD 12-20. Anubias nana sits at SGD 8-15, nana petite at SGD 12-20, barteri broad leaf at SGD 18-25, and rare variants like pinto and coffeefolia at SGD 25-50. Tissue-culture cups (Tropica or Dennerle) cost more but arrive snail-free and algae-free. Browse the full aquarium plants range at Gensou and the hardscape range for driftwood mounting surfaces.

Common Mistakes

Burying the rhizome in substrate is the universal killer for both species — the rhizome rots within 2-3 weeks and the plant dies. Tie or glue to hardscape with the rhizome fully exposed. Second mistake: putting anubias under high light without shade — algae coats the slow-growing leaves and ruins them. Third: dosing iron-heavy fertilisers expecting faster anubias growth; the genetic growth rate is the bottleneck, not nutrients. Fourth: trimming java fern by cutting leaves — pluck whole leaves at the rhizome instead.

Pairing in Aquascapes

Java fern and anubias pair beautifully in iwagumi-adjacent and nature-style scapes. Java fern provides height and movement, anubias provides solid mass and shadow. For a Dutch-style display, java fern works as a midground accent while anubias sits at the foreground edge. Both species suit blackwater biotopes alongside catappa leaves and tannin-stained water. Pair with shrimp colonies — both shrimp and the fish in the tank find shelter under the broad anubias canopy.

Related Reading

• Java Fern Care Guide
• Anubias Care Guide
• Low-Tech Planted Tank Guide
• Epiphyte Aquarium Plants Guide
• Driftwood Aquascaping Guide