Rotala Nanjenshan
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Common Names: Green Wallichi, Pine Tree Rotala
Scientific Name: Rotala nanjenshan
Rotala Nanjenshan is a delicate, fine-leaved aquatic plant native to Taiwan, notably near the town of Nanjenshan. Its dense, bushy appearance and vibrant green to reddish hues make it a popular choice for aquascaping. This plant thrives in both submerged and emersed conditions, making it suitable for aquariums, paludariums, ripariums, and vivariums.
- Quick Guide
- Essentials
- Features
- Care
Quick Guide
- Growth Environment: Submerged, Emersed, Aquarium, Paludarium, Riparium, Vivarium
- Care Level: Moderate
- Light Requirements: High Light
- CO₂ Requirements: CO₂ Recommended
- Placement: Middleground, Background
- Growth Characteristics: Fast-Growing, Bushy
- Water Parameters: Soft, Slightly Acidic to Neutral Water, pH 5.8–6.9
- Special Features: Fine, Needle-like Leaves, Colorful Foliage
- Country of Origin: Taiwan
Essentials
- Light: High; intense lighting promotes compact growth and vibrant coloration.
- Water: Prefers soft, slightly acidic to neutral water with a pH of 5.8–6.9. Thrives submerged and adapts to emersed setups.
- Temperature: 73–80°F (23–27°C).
- Soil: Requires a nutrient-rich substrate for optimal growth. Moist, nutrient-dense soil is ideal for emersed conditions.
- Placement: Ideal for the midground or background in aquascapes; its fine, needle-like leaves add texture and depth.
Features
- Size: Typically grows 6–10 inches (15–25 cm) tall, depending on conditions.
- Rate: Fast-growing; regular pruning is necessary to maintain desired shape and prevent overcrowding.
- Foliage: Fine, needle-like leaves that are bright green; under high light and sufficient iron, the tips can develop a reddish hue.
- Flowering: Produces small, light purple flowers when grown emersed, particularly in ripariums or vivariums.
Care
- Fertilizer: Benefits from regular dosing with fertilizers containing iron, potassium, and trace elements. CO₂ supplementation enhances growth and coloration but is not strictly necessary.
- Pruning/Propagation: Trim stems regularly to encourage bushy growth. Propagate by cutting healthy stems, removing leaves from the lower inch, and planting the cuttings into the substrate; roots will develop from the last node.
- Special Tips: Ensure consistent, well-planned fertilization to prevent stunted growth and blackening. Avoid strong water flow, as it can damage the plant's delicate structure.
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