Eriocaulon quinquangulare is a rare, highly sought‑after rosette plant originating from India and surrounding regions. It has recently entered the aquarium hobby and is prized for its compact size, unique coloration, and refined, grass‑like structure.
Key Characteristics
– Growth Form: Dense rosette plant with thin, needle‑like leaves
– Size: Submerged adult plants typically reach 2.5–3 inches (6–7.5 cm) tall
– Coloration:
– Reddish at the base
– Leaves fade to olive/orange toward the tips
– Texture: Leaves are delicate and easily crushed; handle with care
– Emersed Form: Produces star‑shaped white/yellow flowers when grown above water
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💧 Care Requirements
☀️ Lighting
– Requires very bright light for healthy growth and coloration
– Should not be shaded — low light causes melting and stunting
🌿 CO₂
– Needs strong CO₂ injection directed toward the substrate zone for best results
– As a short plant, CO₂ distribution near the base is critical.
🌡️ Temperature
– Thrives in 20–28°C water temperatures
⚗️ Water Parameters
– pH: 5.5–7.0 (slightly acidic to neutral)
– KH: Sensitive to alkalinity; prefers low KH water
– Substrate: Grows extremely well in ammonia‑rich aquasoils
🌊 Growth Rate
– Slow to moderate growth, but steady under stable conditions
✂️ Maintenance
– Remove old or melting leaves to prevent rot.
– Avoid frequent uprooting — the plant is delicate and easily damaged.
🌾 Propagation
– Propagates by dividing the rosette or through side shoots (rare).
– Tissue culture forms may melt initially and regrow under proper conditions.
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🎨 Aquascaping Notes (tailored for you, ISMAIL)
Given your precision and love for high‑end layouts:
– Perfect as a foreground focal rosette in nature‑style or diorama scapes.
– Its reddish base contrasts beautifully with bright greens like Eleocharis acicularis or Hydrocotyle tripartita.
– Works well in Iwagumi layouts where each plant must hold visual weight despite small size.
– Because it’s delicate, place it in areas with gentle but direct flow.
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⚠️ Important Challenges & Tips
– Melting is common after planting — patience is key.
– Needs stable parameters; fluctuations in CO₂ or KH cause decline.
– Avoid shading from taller stems; this species demands open light.





