Java Fern Thor's Hammer

Microsorum pteropus 'Thor's Hammer'

Plantae›Tracheophyta›Polypodiopsida›Polypodiales›Polypodiaceae

📍 Captive-bred (cultivar)

Unusual Java Fern with split, hammer-shaped leaf tips. Rare and eye-catching variety. Same easy care as standard Java Fern.

Tank Mates

Otocinclus

Peaceful algae eaters that won't damage delicate fronds and help maintain tank cleanliness

excellent

Red Cherry Shrimp

Gentle invertebrates that graze algae without harming the plant; excellent for planted tanks

excellent

Neon Tetra

Small, peaceful fish that provide movement without disturbing the plant or uprooting it

excellent

Anubias Nana

Excellent companion plant with similar low-light, low-maintenance requirements

excellent

Java Moss

Compatible plant species that creates a lush planted aesthetic with similar care needs

excellent

Dwarf Gourami

Peaceful, small fish that won't uproot or damage the plant structure

good

Common Diseases

Rhizome Rot

Symptoms

Blackening or softening of the rhizome, mushy texture, foul odor, frond deterioration

Treatment

Improve water circulation and reduce organic buildup; remove affected portions with sterile tools; ensure adequate water changes; avoid burying the rhizome in substrate

Algae Overgrowth

Symptoms

Green, brown, or black algae coating fronds; reduced light penetration; plant appears smothered

Treatment

Reduce lighting duration to 8-10 hours daily; increase water changes; add algae-eating fish or shrimp; gently brush algae from fronds; address nutrient imbalances

Nutrient Deficiency

Symptoms

Yellowing fronds, stunted growth, pale coloration, transparent patches on leaves

Treatment

Add comprehensive liquid fertilizer containing macronutrients and micronutrients; perform regular water changes; ensure adequate fish waste or supplement with all-in-one fertilizers

Melting

Symptoms

Fronds becoming translucent, dissolving, or turning to mush; rapid deterioration after planting

Treatment

Ensure stable water parameters (pH 6.0-7.5, GH 4-8); maintain consistent temperature; provide adequate lighting; allow acclimation period; improve water circulation