PlanteasyFreshwater

Microsorum Trident

Microsorum pteropus 'Trident'

Also known as Trident Java Fern, Trident Fern, Java Fern Trident

Plantae›Tracheophyta›Magnoliopsida›Polypodiales›Polypodiaceae

Variety of Java Fern · trident

📍 Southeast Asia (cultivar)

The trident java fern is a cultivar with deeply lobed, multi-pronged fronds that create an elegant, fern-like silhouette. Like all java ferns it attaches to hardscape and requires no substrate. Very low-maintenance and suitable for low-tech tanks.

Community Photos

2 photos

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by @kyleesandow

by @karleenmendoza

Tanks keeping this 🌿

Growing in 1 tank

Community tanks featuring Microsorum Trident.

Guppywood Cove

@karleenmendoza

Compatible Livestock

Otocinclus

Peaceful algae grazers that won't damage delicate fern fronds and benefit from the plant's shelter

excellent

Neon Tetra

Small, gentle schooling fish that create minimal disturbance and thrive in low-tech planted tanks

excellent

Amano Shrimp

Excellent algae control without damaging plants; creates a balanced, low-maintenance ecosystem

excellent

Anubias Nana

Excellent companion plant with similar care requirements and growth rate; creates natural aquascaping

excellent

Java Moss

Complementary low-light plant that pairs well with Trident fern for layered aquascaping

excellent

Dwarf Gourami

Peaceful, low-bioload fish that won't uproot or damage the fern's delicate structure

good

Common Diseases

Rhizome Rot

Symptoms

Blackening or softening of the rhizome (root-like structure), mushy texture, foul odor, frond wilting despite adequate water

Treatment

Improve water circulation and reduce organic buildup; trim affected portions with sterile scissors; ensure rhizome is not buried in substrate; perform 25% water changes weekly

Algae Overgrowth (Black Beard Algae)

Symptoms

Dark, hair-like algae coating fronds; reduced photosynthesis; fronds appear dulled or covered in fuzzy growth

Treatment

Manually remove affected fronds; increase water circulation; reduce lighting duration to 6-8 hours daily; add algae-eating shrimp (Amano or Red Cherry); consider hydrogen peroxide spot treatment (1-2 ml per 10 gallons)

Nutrient Deficiency

Symptoms

Yellowing or pale fronds; stunted growth; new fronds emerging small or deformed; overall plant decline despite adequate light

Treatment

Dose liquid all-in-one fertilizer weekly; increase fish bioload through feeding; perform 25% water changes to replenish trace minerals; ensure adequate lighting (low-medium, 6-8 hours daily)

Melting (Leaf Deterioration)

Symptoms

Fronds becoming translucent, dissolving, or turning to mush; rapid loss of plant mass; occurs after major water changes or environmental stress

Treatment

Maintain stable water parameters (pH 6.0-7.5, temperature 20-28°C); avoid drastic water changes; ensure gradual acclimation to new tanks; trim dead tissue and allow plant to recover; reduce lighting temporarily

Varieties

Java Fern Narrow Leaf· narrow leaf Java Fern Windelov· windelov Microsorum Pteropus Needle Leaf· needle leaf

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Quick Facts

co2: Not required
diet: Water column feeder – attach to hardscape
light: Low to medium
tank size: 15 gallons minimum
growth rate: Slow

Water it likes

ph: 6.0–7.5
ammonia: 0 ppm
nitrate: <30 ppm
hardness: 1–15 dGH
temperature: 68–82°F (20–28°C)

Legality

No state or federal restrictions on record for this species.

Not legal advice, and possibly incomplete or out of date. Rules vary by state and locality and change over time — always confirm the current regulations with your state wildlife or agriculture agency before buying, keeping, or shipping this species.