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PlanteasyFreshwater

Broad Leaf Chain Sword

Helanthium bolivianum 'Latifolius'

PlantaeTracheophytaLiliopsidaAlismatalesAlismataceae

📍 South America

Broad Leaf Chain Sword is a hardy, easy carpeting and midground plant with broader, lance-shaped green leaves — fuller and a touch taller than the grassy narrow-leaf chain swords. It spreads by runners that form connected “chains” of plantlets, quickly filling an open midground or a tall foreground carpet. Undemanding and beginner-friendly: it grows without CO₂ under low-to-medium light, though richer substrate, added CO₂, and brighter light produce a denser, faster carpet.

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Common Diseases

Melt on Transition

Symptoms

Leaves turn translucent, mushy, and dissolve within days of planting; typical when moving from emersed to fully submerged growth.

Treatment

Trim affected leaves; keep parameters (pH, temperature) stable; provide adequate light and nutrients; be patient as new submerged growth emerges.

Iron Deficiency (Chlorosis)

Symptoms

New leaves appear pale yellow or white while veins stay green.

Treatment

Dose chelated liquid iron; ensure macronutrient balance to improve iron uptake; raise light if deficient.

Algae Overgrowth on Leaves

Symptoms

Green, brown, or black algae coating leaf surfaces; stunted growth.

Treatment

Cut photoperiod to 8–10 hrs; increase water changes; add algae eaters (Amano Shrimp, Otocinclus); improve flow.

Nutrient Deficiency (Macronutrient)

Symptoms

Stunted growth, yellowing older leaves, weak runner development.

Treatment

Dose an all-in-one liquid fertilizer or macro supplement; use nutrient-rich substrate or root tabs; increase water-change frequency.

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Quick Facts

co2
not required
lighting
low to medium
placement
midground
substrate
Root feeder; thrives in nutrient-rich substrate or aquasoil but tolerates inert gravel with root tabs and liquid fertilizers; spreads horizontally by runners.
growth rate
moderate

Water it likes

ph
6.0-7.5
ammonia
0 ppm
nitrate
<20 ppm
hardness
3-15 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Not legal advice, and possibly incomplete or out of date.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.

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Growing in0 tanks