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PlantintermediateFreshwater

Eleocharis Belem

Eleocharis sp. 'Belem'

PlantaeTracheophytaMagnoliopsidaCyperaceae

📍 Brazil (Belem region)

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An extremely fine, thread-like hairgrass originating from the Belem region of Brazil, producing the thinnest, most delicate stems of any Eleocharis in the hobby. Blades rarely exceed 3–5 cm (1.2–2.0 in) tall, creating a wispy, ultra-fine carpet that looks unlike any other aquatic grass. Demands good light, CO₂, and a nutrient-rich substrate to spread reliably. A favourite among competitive aquascapers who want a finer-textured foreground than standard dwarf hairgrass provides.

Common Diseases

Nutrient Deficiency (Iron/Macronutrients)

Symptoms

Yellowing or pale leaves, stunted growth, loss of fine coloration, slow or halted carpet spread

Treatment

Dose liquid fertilizers (all-in-one or separate macro/micronutrient supplements) according to product instructions; ensure adequate CO₂ and high lighting

Algae Overgrowth (Green/Black Spot Algae)

Symptoms

Green or black spots on leaves, algae coating plant surfaces, reduced light penetration to carpet

Treatment

Increase water changes, reduce lighting duration if excessive, add algae-eating fish or shrimp, improve water circulation and CO₂ levels

Melting (Tissue Decay)

Symptoms

Leaves become translucent, mushy, or dissolve; plant appears to shrink rapidly

Treatment

Improve water parameters (pH 5.5–7.0, softer water preferred), increase CO₂ and lighting, perform partial water changes, remove decaying tissue

Poor Growth / Stagnation

Symptoms

Minimal new growth, leaves remain small and thin, carpet fails to spread despite adequate time

Treatment

Verify CO₂ injection is active, increase light intensity to 8–10 hours daily, dose comprehensive fertilizers, ensure substrate is nutrient-rich aquasoil

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Quick Facts

co2
Required for carpeting
light
High
max size
3–5 cm (1–2 in) tall
placement
Foreground carpet
substrate
Nutrient-rich (aquasoil strongly preferred)
growth rate
Slow to medium

Water it likes

ph
5.5–7.0
notes
Finest-leaved Eleocharis available. CO₂ and good light essential for carpeting. Softer water preferred.
hardness
0–8 dGH
temperature
154–180°F (68–82°C)

Stats

Community tips0
Growing in0 tanks