Scientific Name: Rotala sp. 'Nanjenshan'
Common Name: Rotala Nanjenshan
Origin: Nanjenshan, Taiwan
Growth Rate: Fast
Difficulty Level: Moderate
Temperature: 22–28°C
pH: 5.5–7.5
GH: 2–10 dGH
KH: 0–6 dKH
Moderate to high lighting is recommended.
High light promotes compact growth and enhances the plant's delicate, finely branched appearance.
Under low light, stems may become elongated and less dense.
CO₂ supplementation is highly beneficial.
Encourages vigorous growth, dense branching, and healthier foliage.
While adaptable to low-tech setups, the plant performs best in CO₂-enriched aquariums.
Requires regular supplementation of macro and micronutrients.
Adequate nitrate, phosphate, potassium, and trace elements support rapid growth.
Iron and micronutrient supplementation help maintain vibrant green coloration and healthy new shoots.
Consistent nutrient availability prevents stunted growth and lower leaf loss.
Best suited for the midground to background.
Frequently used to create dense, bushy groups with a soft, feathery texture.
Ideal for adding depth and contrast to planted aquariums.
Easily propagated through stem cuttings.
Cut healthy stem tops and replant them into the substrate.
Trimmed stems readily develop side shoots, creating fuller growth over time.
Regular trimming encourages dense branching and compact growth.
Plant stems in groups for a lush, natural appearance.
Maintain stable CO₂ and nutrient levels for optimal growth.
Good water circulation helps keep delicate foliage clean and healthy.
Rotala sp. 'Nanjenshan' is a highly attractive stem plant known for its fine, needle-like leaves and dense branching pattern. Its soft texture creates an elegant, natural appearance that contrasts beautifully with broader-leaved aquatic plants. With strong lighting, stable CO₂ supplementation, and balanced fertilization, it forms lush green bushes that add depth, movement, and visual interest to Nature, Dutch, and high-tech planted aquariums.
